Dove this on May 25th. This turned out to be an excellent shore dive. Access to Gun Beach was easy...just drive to the north end of the tourist strip in Tumon and follow the bumpy dirt road. The big sign that said 'Do Not Enter' was no longer there. There seems to be some construction going on down by the beach now. We had ideal conditions -- getting in just after slack high tide, offshore winds, good visibility. When I read about following the pipes, I pictured large culverts, when in fact they're 4-6 inches in diameter. As you walk down to the beach they're off to the left (south). Didn't have any trouble finding them. The walk out (and back) was a little tricky in knee-deep water, but we just followed the pipes until we could float off the reef and put on fins. Current was running a little bit from the north, so that's where we headed. The reef seems in great shape. Nice smattering of tropical fish and corals. The highlight was early in the dive when a black-tipped reef shark cruised by. There's a good 70-80' of relief on the reef, sloping from 40 to 120 feet pretty quickly. As I was in Guam on military business, it was impossible to get on a boat due to my schedule and the fact they were full on the days I had available. Grabbing a good shore dive was the next best thing.