Easily the best overall site of the four I dove near Hilo, though Puhi is a close second. Leleiwi sustains interest for multiple dives and is a great place to take snorkeling friends to see turtles big and small. The entry is easy at low or mid tide IF you use the concrete steps and lava bench just down the bulkhead from the shower and kiosk. Ask Nautilus dive for a map since it's worth it to get a map, especially if the waves come up while you're under. I liked diving all three directions from the entry, but heading right after 50 kicks to see the arch and the turtle pinnacles just beyond it is probably the most interesting direction. Lots of mushroom top coral formations to visit and a great collection of butterfly fish species, especially ornates. Mornings here have very few cars in the parking lot and even in the afternoon there is a far better chance of securing a space than at Richardson Beach Park a quarter mile away.