Australia's Amazing Bioluminescent Lake (Also Bioluminescent Bay in Puerto Rico). An unusually high concentration of Noctiluca scintillans, a bioluminescent microorganism, turned the water a bright, glowing, ethereal blue.
Firefall Yosemite - A small, ephemeral waterfall that flows over the eastern edge of El Capitan in Yosemite Valley. For two weeks in February, the setting sun striking the waterfall creates a deep orange glow that resembles Yosemite's historic "Firefall.
Blue Lagoon Spa, Iceland ---- my friends flew into Reykjavik for 2 days on their way to Europe. Went straight from the airport to the Spa, and LOVED it. They said they loved Reykjavik and would go back in a heartbeat.