AND ANOTHER UPDATE:
If you do not have a boat with you when you go through the gate, the gatekeeper won't know you are there for the regatta, so be sure to tell him (or her). Otherwise, they might try to charge you $10 to go into the park. Regatta participants will have free entry to the park during the event. At registration you will be given a pass for your dashboard.

Also, remember to ask for your regatta handout at the gate.