I've only entered from the south and it's a long hike and a long swim. This is an interesting dive site though - more crab than you can imagine. Get a license and a game bag, take a few home and have crab and Coronas. On good vis days look up through the pilings at the end of the dock to the surface. You'll frequently be rewarded by sunlight filtering through the pilings and silhouetting thousands of small fish. An impressive site.