"The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails." William Arthur Ward
= spontaneous crewing on a strangers’ sailboat.
Whether you have sailing experience or not, whether you contribute money or not, whether you found the boat in advance online or locally in the harbour. Some call it boathitchiking, hitching, couchsailing, sailhitching. I like to call it hitch-sailing.