In Volcanic Air’s 206B JetRanger, it’s a relatively quick 20-minute flight from the shores of Lake Rotorua to the interior of New Zealand’s only active marine volcano: White Island. On the way, your pilot tells you about the local Maori people (the lake’s name means “lake two” in Maori), the Kaingaroa Forest (the largest human-planted forest in the world with more than 1100 sq miles of Monterey pines), and Captain James Cook’s naming of the island after either seeing steam rising from volcanic vents or the island’s supposed resemblance to a white whale.