Isthmus Reef
Also known as: Harbor Reef
Isthmus Reef lies just southwest of Bird Rock in Isthmus Cove. Its shallowest point is marked by a post with a sign and a light. The reef features shallow, kelp-covered plateaus, along with ledges, undercuts and vertical walls on its west, north and east sides. Small caves shelter lobsters, while large horn sharks rest in the crevices. Nudibranchs and juvenile sheephead and garibaldi make it a good macro dive site, and the kelp offers wide-angle scenes. With little current and calm water, it’s one of the island’s easiest dives, which is why many certification courses come here.
Divesite facts
Position on the map
Tags
Names of this dive site
Divers know a place by different names. Add the name you know, with its language if it belongs to one. Every name helps other divers find the site.
-
Isthmus ReefMain nameVotes as main name: 0
-
Harbor ReefVotes as main name: 0
Vote for the name divers really use. Divers who logged a dive here count double. The votes are counted every night, and the main name only changes when another name has led clearly for a week.
Sign in to add a name or to report a wrong one. Sign in