Guam

Gear up at your car, then walk 30' to knee-deep water, and follow a cable/pipe channel straight out. Returning, expect to clutch this cable/pipe to resist the rip tide in this cut. Once outside, head LEFT toward the hotels. Rightward is boring, and devastated by crown-of-thorns starfish who've killed the reef. Leftward is a paradise of candlestick corals, gradually sloping from 15' to 100' deep before becoming a sandy plain.  Lots of spider-shells, large animals, & reef fish.  Very pleasant dive.  Far better than anything in Hawaii, but not as good as Saipan, and unworthy to be mentioned in the same sentence as Palau.  Re-entry through a riptide, and the lack of a bathroom or shower, keep this from being perfect... but it's nearly perfect. Avoid snorkeling here if there are waves. Use thick-soled felt booties on this and all Micronesian shore dives, because spiny urchins and sharp rocks abound in the corals which you walk across in the shallows. Visibility is typically 60 feet/18 meters.

This is one of the easiest shore dives on Guam. Located at the far-right side of the tourist strip, Tumon Bay. Go as far right as possible on the paved road, past the Nikko Hotel, then follow a fairly good dirt road down to a small beach alongside the Nikko Hotel.  There are no facilities (no phone, bathroom, or anything else) at this beach, but in case of emergency, the hotel's nearby & willing to help out.

Gun Beach