The RVYC docks are only a few mins up arm to starboard upon entry to Secret Cove. If you are looking for transient moorage, stay with Scott and his crew at Secret Cove Marina on the port side arm. They have a well stocked store and fuel. If you want to be on the hook then stay in either Smuggler's Cove or in Buccaneer Bay. All are very close to Epsom Point. Your friends can register you with RVYC and you can raft up as a guest boat too.
You should go to the dock at Buccaneer Bay Marina (middle channel in Secret Cove) and buy some live bait and mooch off Epsom, that's pretty much all that's been happening up there, at least it is well worth the experience and had been performing better than trolling.