The tides around San Juan Island change the seaside character of the
beaches and rocky outcroppings dramatically. Low tides of up
to -4ft can uncover tide pools full of sea life, making for a
wonderful morning of exploration, while +12 tides blowing in can be
a breathtaking experience from one of San Juan Island's many
protected coves.
Follow this link to find the tidal highs and lows during your next
visit to the Island: www.saltwatertides.com/dynamic.dir/washingtonsites.html.
Scroll to the bottom of the pate and check "Friday Harbor", then
highlight the month you're visiting, the day you're arriving, and
the length of your stay.