We try to dive here every time we make it to the Big Island. Topside it is an incredibly beautiful spot, somehow peaceful despite the number of people around. It is easily accessible by rental car and parking is quite close to the entry point (we pay $3 to use the church's lot, please do pay them, it was distressing to us to see people not respecting their honor system). The site is well-protected from swells and currents, contributing to ease of entry and exit. We use the two-step entry point on lava that is almost exactly halfway between the two points of the bay. It often is crowded with inexperienced snorkelers but people generally are polite about making way for the awkward looking fools in all that heavy gear (and they seem to appreciate a simple tip or two). There really is no way to go wrong with this site underwater...swimming around where the wall hits the sand in deeper (50 to 60 ft) water is interesting, as is staying in a bit more shallow water to either side. Have your underwater fish guide handy, as one can find the vast majority of the 100 most common fish here. For photography the great visibility and light here can white out photos, so it takes some care.