Lowest B.C. tides in a decade present ideal conditions for beachcombers - Action News
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Lowest B.C. tides in a decade present ideal conditions for beachcombers

B.C.'s south coast is experiencing some of the lowest tides in a decade.

The low tides are a result of natural factors including the moon's position lining up perfectly

B.C. south coast sees lowest tides in years

2 years ago
Duration 3:40
Beachcombers on British Columbia's south coast were treated to the lowest tides in at least a decade on Thursday. It's all thanks to a series of natural events happening at the same time.

The lowest tides in about a decade graced B.C.'s South Coast on Thursday, witha combination of natural factors creating the perfect situation for combing the beach for creatures and treasures.

Low tidehit just after noon in Vancouver, and just before noon in White Rock, a municipality south of Vancouver near the U.S. border. Victoria had one low tideat about 9:30 a.m. and another is expected at 8:45 p.m. PT.

Low tides are also expected Friday and Saturday before rising to normal levels.

Tides are caused by the gravitational pull of the sun and moon.

CBC meteorologist Johanna Wagstaffe says these low tides are a result ofthree cycles that have lined up perfectly.

First, spring tides when tides jump from extreme highs to extreme lows and line up with the full moon are currently in effect.

A full moon known as a buck moon rises behind a pier in White Rock, British Columbia on Wednesday, July 13, 2022. See large orange moon with silhouette of four people in front.
A full moon known as a buck moon rises behind a pier in White Rock, British Columbia on Wednesday, July 13, 2022. The position of the moon has led to extremely low tides. (Ben Nelms/CBC)

Second:the full moon overnight is the closest it will be to Earth in 2022.

"It might not sound like much in astronomical terms but the moon being that much closer will have that much of an extra pull on our tides," Wagstaffe said.

An aerial image of extreme low tide at Third Beach in Vancouver's Stanley Park.
A historic low tide pictured at Third Beach in Vancouver, B.C., on July 13, 2022. (Gian Paolo Mendoza/CBC)

Third,the peak of the moon's 18.6-year cycle, also known as the Lunar Standstill, is fast approaching. The peak occurs in 2024-2025, but observable effects extend for at least three years around that period.

'A fantastic chance to learn'

Low tides make for a goodtime to hit the beach and look at intertidal creatures, ones that may not be seen otherwise.

Alison Wood, co-founder of education organization Ocean Ambassadors, says she has been out with her summer camp kids,checking out what low tides offer.

"It makes exploring in the intertidal zone really fun," she said.

A man is seen walking on a path along False Creek during low tide in Vancouver, B.C., on July 13, 2022.
Low tides are a result of three cycles that have lined up perfectly, explains CBC meteorologist Johanna Wagstaffe: the occurrence of spring tides, the moon's close distance to earth, and the approaching Lunar Standstill. (Ben Nelms/CBC)

In particular, sheand her crew have been able to spot sea stars, limpets and crabs.

"There's dozens for them to see."

Jackie Hildering, a marine biologist in northern Vancouver Island, saysit's important to take thatopportunity to learn about sea life.

But it's equally important for beachcombersto helpprotect the creatures impacted by low tide.

"There are stressors and especially the life that gets exposed on lower tides they're not designed to be able to deal with that in the same way as animals that can move around," she told All Points West host Robyn Burns.

Stressors include being out of the water,heat, and increased predation from birds, bears and other animals while the tide is out.

She's reminding beachcombers not to touch animals, especially if they're unsure of whether the animalshould be in the water.

"We're often inclined to think, 'I'm going to save this animal because it's not in water,' but for example, there are fish that are incredibly adapted to be able to have water tucked behind their gills and you might be taking away a male fish that is guarding its eggs."

People are pictured walking along tide pools during a low tide in White Rock, British Columbia on Wednesday, July 13, 2022.
Now is the time for beachcombers to explore intertidal zones, as the tide will be lower than usual on B.C.'s South Coast on Thursday. (Ben Nelms/CBC)

She adds that it's important to be careful when walking and reconsider taking shells and other treasures home.

"When you're going into an area, it's a privilege, it'san opportunity, it's a fantastic chance to learn and to interact in a way that's respectful."

With files from All Points West and Lisa Christensen