A couple of after thoughts I figured might be worth sharing.
The first image shows how the waves curve into both North Chesterman and South Chesterman - more so for South Chesterman.
- Frank Island.jpg (255.35 KiB) Viewed 13899 times
The next image shows the four different locations you can park and where I launched from (red dots). I parking at the corner at P3 so I would have access to both beaches. On March 14 the tide was a lot higher than shown in this image at 9 am and dropped about 6' to close to the level shown by about 1 pm.
- Chesterrman (N+S).jpg (1.68 MiB) Viewed 13899 times
I walked west as far as I could without getting to far into the wind affect in the lee of Frank Island and launched at red dot #1. Even though you were sailing across the shallow flats of the cove and there was some spacing between the waves, it was REALLY hard to work to windward and gain distance from the beach in the onshore wind and waves. But with some effort I made it to about red dot #2 (a distance of about 400 m or about twice the width of the sailing area in the Squamish River). From here the wave angle was side-onshore and made for awesome jumping to Starboard on the way back out (from memory you got a least five waves before your got to the outside). Form red dot #2 I was able to make it to the outside of the impact zone gybe off Frank Island and drive further to windward only to be eaten by an over head close-out wave while sailing clew first down-the-line on jibe exit. Humble-tumble and long swim followed to return to red dot #2.
In hindsight I should have lanched from the footpath (P2) or the change house (P1) further north along the beach. This would have made getting out WAY easier with the side-on waves and would have doubled width of the available water to about 800 m. If you washed into the pit of the bay, you could always drive down to P3, retrieve your gear and repeat.
After sailing North Chesterman solo for more than a couple of hours I decided I was going to give South Chesterman a shot even though I was more than a touch nervious about taking medium sized gear out into side-off wind into the wind shadow of Frank Island and/or getting washed downwind into the rock points off Rosie Bay which were getting hammer by some rather large waves.
I figured I would minimize the risk by launching at red dot #3 and dared walk only as deep as I could stand (by this time the low tide had minimized the shallow water and size of the sailable area inside the South Chesterman. I waited for wave of choice and then waterstarted point along and into the beach. Once under the power of the wave you could drive down the line and there was time to make multiple hits before you ran out of water. Even this was so much fun I then walked up the beach and repeated another 3 times. I was satisfied enough with a couple of these rides that I then tried North Chestermans one more time, but the wind had backed to the point the 4.5/92 was no longer enough.
Hope there is something in there that helps clarify why the waves looked 'confused' in some of the pictures and might help you when sailing here for the first time.