The grotto was built in 1720 and consisted of a rock chamber filled with shells and a rock pool, but was later destroyed.
It descends to a rock pool at the base of the falls, offering fine views of the basalt rock face.
By then a hand-plastered rock pool, two cabins, two baths, and a sleeping room had been built.
Fish species reported in the late 19th century in a small rock pool of 9x 4 in size continue to flourish.
Further exploration has not turned up any more instances of the plant growing in the region, outside of the one rock pool.
The site is located around a spring-fed rock pool.
Upon exiting the tunnel, riders would twist and turn some more until they reached a small rock pool, and slowly floated out.
The other fork would reconnect with the main path before the rock pool.
