After a restful time at Toba Wildernest, we departed late morning for Octopus Islands Marine Park on Quadra Island in Desolation Sound. Our departure was timed according to the tide schedule to achieve safe passage to and from the Octopus Islands area. Boaters have to properly negotiate one to three sets of rapids through narrow, shallow passages, depending on one's chosen destination. "Rapids?" You may ask, "How the heck does someone do this in a boat?" First of all the key is to do it properly. The tide fluctuates twice per day, up to 12 feet per cycle, but usually…