Located approximately 30 miles (48 km) southwest of Austin, Texas, the Hamilton Pool Preserve is a historic swimming hole which was designated a preserve by the Travis County Commissioner’s Court in 1990. Located 3/4 mile upstream from its confluence with the Pedernales River, Hamilton Creek spills out over limestone outcroppings to create a 50 foot waterfall as it plunges into the head of a steep box canyon. The waterfall never completely dries up, but in dry times it does slow to a trickle. However, the pool’s water level stays pretty constant, even during periods of drought. The preserve is home to the Golden-Cheeked Warbler, and a great variety of other birds. The diverse vegetation of Hamilton Pool ranges from semi-arid species in the uplands to riparian species in the canyon. The uplands of the preserve are a juniper and oak savannah with a variety of native grasses and wildflowers. Several rare plant species including canyon mock-orange, red bay (western-most colony of this eastern species), and chatter box orchid are known to occur in the canyon areas along Hamilton Creek.
The deep blue Crystal Cave of Svmnafellsjvkull (CORR) in Iceland was created by the glacier from Vrffajvkull Volcano's icecap meeting the coastline. The deep blue color is due to centuries of compression removing air from the ice. via dailymail.co.uk Photo by Orvar Thorgeirsson #Vatnajvkull #Iceland #Crystal _Cave_of_Svmnafellsjvkull #Orvar_Thorgeirsson