Lava Ocean Tours. The best lava boat operator on the island, Captain Shane Turpin takes visitors out on the brand-new, 39-passenger LavaOne for a thrilling, up-close view of live lava flows spilling out of Kilauea's southeast vent into the ocean. If the lava's not flowing, you can take an incredible boat tour of the Hamakua Coast in search of otherwise inaccessible waterfalls and pods of dolphins. Captain Turpin visits every scenic spot, getting close enough for you to feel the spray of the waterfalls, and is the only boat operator on the east side currently doing a waterfall tour. Tours include drinks and snacks and leave from Hilo. Hilo, Hawaii. 808/966–4200; www.seelava.com. From $75.