The Tropical Forest conservatory has a different theme every three years, beginning with the country of Thailand. In addition to a "Research Forest Station" and a "Healer's Hut" (designed to educate visitors about various cultural topics), there are two waterfalls, several bridges, a stream, and a wide variety of plants from bamboo, orchids and frangipani to plants of economic, cultural, and horticultural value to the people of Thailand. The second theme is "Headwaters of the Amazon," which opened in early 2009.