I came back to the Finlayson Arm Rock on Oct. 7, 2023. Last time I was here a few months ago, I dove off the point just South of the rock. Today I wanted to re-visit the area off the small exposed rock that I dove back in 2009, when I first visited this site.
I anchored my boat near the shoreline across from the small, exposed rock. At the surface here, under the shade of the steep shore, visibility was a sort-of ok 8-10'. As I swam out towards the rock, the visibility quickly dropped to only 3' or so. I descended near the South end of the rock and started swimming down along the rocky bottom. The visibility was so bad I had to swim with a hand out in front of me to stop me from bumping into the rocks. By the time I reached 30' deep, it was almost completely dark and I was thinking of quitting the dive. I don't know why I keep trying to dive in Finlayson Arm in the early Fall. Most of the time when I've come to this area in September, there is a red plankton bloom that makes the visibility about as bad as it gets and basically undiveable. Today I was optimistically assuming that since September was over, the visibility would be magical. In the future, I have to try and remember to avoid Finlayson Arm in Sept. and Oct. I stubbornly kept descending and the visibility started to get better at 45' deep. Eventually, it was 20-30', but dark like a night dive. My maximum depth was 120'. I followed the base of a large rocky area that bulged out from the South side of the islet. This rocky area is visible on the sidescan image. During my 2009 dive here I described seeing a surprising amount of tiger rockfish (7 or 8). Today I didn't see any, just a few copper and quillback rockfish. Back then, I also noticed an unusual amount of cup corals, but today I only saw a few in just one small area. In 2009, I also saw several boot sponges below 100', but today I didn't see a single one. I did see 2 feather stars today. Years ago, I would have not expected to see them in Saanich Inlet, let alone this far South.
I'm not a huge fan of Saanich Inlet diving, mostly because of its relative lack of marine life. On days with great visibility, the dramatic topography gives it some charm, but the other 50% of the time (like today), it can be dark, gloomy and almost creepy.