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Diving into the World’s Fastest Tidal Rapids

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In the mystical waters just north of Vancouver, Canada lies a narrow channel called the Skookumchuck Narrows, or simply “The Skook.” It’s a hidden gem in the Salish Sea that boasts a unique spectacle – a tumultuous dance of tides and currents that draws adventurers and spectators from far and wide.

The beautiful British Columbia coastline

Imagine this: a channel so narrow and shallow that a single tide can unleash an astonishing 200 billion gallons of water, creating a tumultuous display of standing waves, whirlpools, and currents surging at 16 knots (18 mph or 30 kph). Such speeds may seem mild when driving a car, but the erratic water is a different ballgame. Skookumchuck Narrows is a contender for the title of the world’s fastest tidal rapids, rivaled only by Nakwakto Rapids further up the British Columbia coast.

All photos were captured with a Nikon Z6 in an Ikelite underwater housing with Sea & Sea YS-D3 Mark II strobes.

But there’s a twist – this aquatic battleground isn’t just for adrenaline seekers; The Skook is an oasis for life beneath the waves. April 2023 marked a rare convergence of perfect conditions: a celestial alignment allowing divers to witness The Skook in all its glory. And who better to guide this daring expedition than Porpoise Bay Charters, a family-run venture led by the seasoned Kal Helyar and Ann Beardsell?

Diving with Porpoise Bay Charters

Raging currents = an abundance of life

The allure lies not in the danger but in the vibrant marine ecosystem fueled by the relentless currents. Ocean currents act as nature’s turbochargers, transporting nutrients that transform places like Skookumchuck Narrows into underwater havens with colorful life thriving amidst the rocky terrain.

The prolific life underwater in The Skook.

It’s important to debunk the myth that this is a reckless plunge into chaos. Diving The Skook is not about courting danger but choosing the right moment: at slack when the tide turns, the water experiences minimal movement, and the currents are a mere 4-5 knots. Picture this – a scuba diver slipping gracefully between tidal changes, maneuvering with precision as the water changes its course and gradually picks up speed. Timing is everything, and finding the rare dates when daylight piercing through the emerald-green water coincides with navigable water conditions is critical. April 2023 granted us a mere handful of these golden days of nature’s alignment for the first time in four years.

Painted anemones designed to grip the rocks and collect food flowing with the rapid currents.

Entering the abyss

As our vessel, under the watchful eye of Captain Kal, approached the infamous Skookumchuck rapids, a tangible excitement filled the air. These cold-water adrenaline-filled dives are the scuba diving equivalent to scaling Everest. The unpredictability of The Skook, where currents can whisk you in any direction, demanded respectful caution from our experienced salty crew.

Gearing up in the snow to enter the Skookumchuck Narrows

With a reassuring smile, Captain Kal dismissed the notion of a toilet bowl experience, where divers are pulled in a circular direction by the currents as if flushed down a toilet. He emphasized that they only dived during an easy drift in the current, which was hard to fathom possible in such treacherous waters. Approaching the narrowest section of the channel, where the current was fastest, Kal’s experienced eyes scanned for the telltale signs of slack tide. Tidal ripples slowed, and we entered the water in the few precious minutes within the next year when it was possible to witness Skookumchuck in all its sunny glory.

The most impressive patch of painted anemones and metridiums in The Skook

As we descended into the underwater world, a mysterious algal bloom cast a dark green haze, unveiling a breathtaking palette of colors below. Bright red and pink anemones, neon orange encrusting sponges, and deep purple ochre sea stars adorned the rocky canvas, showcasing nature’s artistic prowess.

Patches of vibrant life adorn the rocky surfaces

Surrendering to the sea

Descending further, we felt the force of the tide, like a river yet to subside. Gripping onto rock holds and kicking into the current, we felt like underwater rock climbers. Adjusting our underwater camera settings and getting comfortable with the flow of the water, we marveled at the transformation of the underwater landscape. Slabs of rock, once pounded by the current, now hosted a vibrant community of marine life.

When the current picks up, you can only shine a light and watch the life as you drift by

After a mesmerizing twenty minutes of relatively gentle water, the current intensified, signaling the roller coaster drop ahead. We surrendered to neutrality, letting the current guide us along the wall. Boulders and back eddies added a touch of unpredictability; with trust in our abilities and Captain Kal’s promise of a safe pickup, the thrill was exhilarating rather than menacing.

A beautiful Puget Sound king crab

A group of invertebrates are protected from the fast current by a crevice; the rest of the rocks sandblasted clean by the fast water.

As the current ebbed, we found ourselves in a tranquil cove adorned with green sea urchins, marking the end of our underwater odyssey. The Skook had shown us its splendor: a delicate balance of chaos and life beneath the surface – leaving us with memories as vivid as the colors we witnessed.

About the Author

Nirupam Nigam is a dedicated underwater photographer and fisheries scientist. While growing up in Los Angeles, he fell in love with the ocean and pursued underwater photography in the local Channel Islands. He received degrees in Aquatic and Fisheries Science and General Biology, as well as a minor in Arctic Studies, at the University of Washington. After working as a fisheries observer on boats in the Bering Sea and North Pacific, Nirupam became the Editor-in-Chief of the Underwater Photography Guide and the President of Bluewater Photo – the world’s top underwater photo & video retailer. Check out more of his photography at www.photosfromthesea.com!

US-based divers: explore more close-by dive destinations with Bluewater Dive Travel here.

All photos: Nirupam Nigam

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Alonissos: The complete diving destination (Part 1)

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In June we were incredibly fortunate to be invited to dive in Alonissos, a small Greek Island in the Sporades island chain located in the North Aegean Sea.  While I have long been a big fan of the Greek Islands as a great holiday destination, I had not had the opportunity to do any diving on previous visits and Mike and I were extremely excited to see what Alonissos had to offer both above and below the surface!

The Sporades are easily accessible via the airport in Skiathos (the first island in the chain), which is served by Jet2 flights from all major UK airports from May through October.  Numerous ferries and charter boats make island hopping from Skiathos Town a breeze.  After an hour boat ride, the picturesque port of Patitiri was a wonderful introduction to Alonissos, where we were met by our gracious hosts Kostas of Albedo Travel and Dias of Alonissos Triton Dive Center.  Mike and I were delighted to be staying at the Paradise Hotel, aptly named for its stunning views over the sea and great location for walking to the waterfront.

Alonissos is beautifully situated in the National Marine Park of Alonissos and the Northern Sporades, the largest marine protected area in Europe.  The surrounding seas offer fabulous marine life, including incredibly rare species such as the Mediterranean monk seal.  They boast deep walls covered in gorgonians and sponges, stunning topography with caverns, swimthroughs and pinnacles, and the first accessible ancient shipwreck from 500BC!

In locations where historical sites have been reported, the waters are largely restricted, but with collaboration between government, underwater archeologists and dive centres, incredible underwater museums are being created for a truly unique diving experience.  Alonissos is home to the first of these, the Ancient Shipwreck of Peristera Accessible Underwater Archeological Site.  The chance to dive into history (along with reports of healthy reef life and amazing underwater topography) meant Mike and I were keen to get in the water.

Our introduction to the diving around Alonissos was at the Agios Georgios Pinnacles, in the channel between Alonissos and Skopelos.  This fantastic site was named “The Chimney,’ and proved to have a huge amount to see.  We got to a decent depth here (over 25m), and marvelled at a colourful reef wall with a wonderful swim through whose rocky walls were absolutely covered with life.  As well as brilliant topography there was no shortage of macro life here.  We saw numerous nudibranchs, five different species in total.  The second dive at Mourtias reef nearby was a shallower dive along a nice wall with lots of crevices. Several moray eels and grouper called this site home.  We enjoyed looking in the crevices for lobster and smaller benthic life, such as cup corals and tunicates.

Our itinerary allowed us two dives a day with afternoons left to explore the island with our hire car and evenings to enjoy the famous Greek hospitality.  This proved to be a lovely mix of in-water and land based diversions.  

The next days diving to the Gorgonian Gardens and Triton’s Cave was to be even better!  These two stunning sites are nothing short of fabulous.  The Gorgonian Gardens was a deep wall near to the Agios Georgios islands.  The ever-present currents in this deep channel meant that the sea life was amazing … the namesake Gorgonian sea fans dotted the wall at a depth of 30 to 50 meters, getting ever larger the deeper we went.  Above 30m was by no means less beautiful, with sponges, corals, scorpionfish, moray eels and some rare and colourful nudibranchs.

The second shallower dive of the day was to Triton’s Cave or the Cavern of Skopelos, on the east side of that island. The spectacular rock formations had wild striations both above and below the water making a truly epic topography.  The cavern entrance was at 14m, and big enough for a buddy pair, winding up to 6m and passing two beautiful windows out into the blue.  Emerging from the cavern, the light at the shallower depths and the incredible rock formations made for a fantastic gentle swimming safety stop and we all surfaced by the boat with massive grins. 

Check out our next blog :Alonissos: The complete diving destination (Part 2)” to hear about our amazing dive on the 2500 year old Peristera Wreck!

Thanks to:

Alonissos Triton Dive Center https://bestdivingingreece.com/

Albedo Travel https://alonissosholidays.com/activities/

Paradise Hotel https://paradise-hotel.gr/

Alonissos Municipality https://alonissos.gr/en/

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Mamma Mia! Diving Skopelos (Part 2)

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Our second days dive itinerary was to the famous Christoforos wreck! This is arguably the best dive in Skopelos and though only open to divers with deep diving experience, this 83m long wreck is well worth the visit.  

The Christoforos sits in 43 meters of water with the deck at 32 to 35 meters.  A 30m dive can give an impressive view of the wreck, though such a large wreck needs a few dives to truly do it justice.  Given its ideal location just a 2 minute boat ride from the dive centre dock it is an excellent first dive of the day.  The sheltered site is also diveable in all but the absolute worst weather so although deep, the water is usually clear with little to no current making it a very pleasant dive.  The site is superb for technical diving and a great training site for the Tec 40 and 45 programs, offered by Skopelos Dive Center.  

The Christoforos wreck was originally a collier ship built in 1950 at Grangemouth shipyard under the name “Thomas Hardie”.  In 1976 she joined the Greek merchant fleet as “Christoforos”.  On the 2nd of October 1983 the Christoforos was carrying 2600 tonnes of cement from Volos to Piraeus Port. During the voyage the weather turned, resulting in the ship developing a 7 degree list, whereby she changed course for safe anchorage at Panormos, Skopelos.  The ship reached Panormos at 16:00 with a list of 17 degrees and water ingress to No. 1 hull.  Though attempts were made to right the vessel, the crew were ordered to abandon ship at 22:00.  The captain, lieutenant and the quartermaster remained to try and save the ship, but had to abandon the attempt themselves and the Christoforos finally sank at 05:30 on 3rd October 1983.  She now sits upright in 43 meters of water less than 200m from shore in Panormos.

Diving has only been allowed here since 2018, so the wreck is very well preserved and a real treat to dive.  Permission to dive here was granted by the authorities after lots of incredibly hard work by the Skopelos Dive Center staff.  Having a fantastic wreck in such an amazing location and in excellent condition is a real privilege.

Of all the sites in Skopelos this was the site Mike and I were most keen to experience.  Having kitted up and zipped across the bay to the mooring, we left the surface and followed the descent line until the wreck emerged spectacularly from the blue at 15m.  She is a big and beautiful wreck, sitting as though calmly continuing her journey along the seabed.  With most of her original features still intact there were points of interest everywhere, including the anchors, winches, ships telegraphs, the wheel and RDF antenna.  

We found that aquatic life had colonised the ship, with schools of fish, electric blue nudibranchs, a large moray eel and the resident scorpionfish lurking inside the bridge.  The Christoforos was truly a stunning wreck and despite maximising our time at depth we eventually had to say our goodbyes and begin the slow and steady return to the surface. 

After a superb morning dive we had the afternoon to do a little sightseeing of the island, with a trip to the church of Agios Ioannis Kastri made famous by the blockbuster movie “Mamma Mia!”. Mike and I spent a happy afternoon pootling around in our little hire car before meeting up with Lina from Skopelos Dive Center.  An underwater archeologist as well as a dive professional, Lina had offered to show us a rather special attraction, the Christoforos shipwreck Digital Spot public information and awareness centre.

A fantastic initiative made possible from the collaboration of the government and hard work of the staff at Skopelos Dive Center is the “Digital Spot” in Agnontas port.  This information center has a number of displays on the history of the Christoforos wreck, the process by which the wreck was allowed to be opened to the public for diving tourism, other sites of historical interest in the area, a video of the wreck and the best bit, a virtual reality dry dive experience!  The beauty of the VR system is that non diving members of the family can see what you have seen on the wreck, or you can see areas that you may not have explored during the dive due to time or depth limitations.  It was a truly immersive experience and a great addition to the dive itself.

After a wonderful day we celebrated our last evening on the island with an exquisite meal in Skopelos Town with fabulous views over the town and bay, washed down with the excellent local wine.  The lamb with lemon and potatoes was a meal which I could happily eat every day for the rest of my life! 

Skopelos is an island that truly has it all.  The diving is excellent, the landscape is beautiful with plenty of non diving activities, the locals friendly and the food and drink superb.  Given how accessible it is as a holiday destination it has avoided becoming overcrowded and even in peak season offers a fun yet relaxing atmosphere.  We highly recommend giving Skopelos a visit.  We will certainly be back again!

Thanks to:

Municipality of Skopelos (https://skopelos.com/

Skopelos Dive Center  (https://sporadesdiving.gr/)

Ionia Hotel (https://www.ioniahotel.gr/en)

Dolphin of Skopelos (https://dolphinofskopelos.com/)

Ta Kymata restaurant (@takymata)

The Muses restaurant (https://www.facebook.com/TheMussesMousses/)

Aktaiov resturant (https://skopelos.com/listings/aktaion-taverna/)

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