It was a beautiful clear day and from the Black Sand Basin we went to Biscuit Basin. Biscuit Basin The boardwalk trail is less than a mile round trip and the basin is consist of various geysers and thermal pools: Black Opal Pool, Sapphire Pool, Jewel Geyser etc. There are numerous different size fumaroles and you can hear the activity beneath. Some are bubbling, shooting boiling water and under ground gurgling. The rising steam might hit you as you walk along when the air blows your way and it is warm but sulfur vapor is good for your skin right!
Visit this basin if you have spare time in your itinerary! It is absolutely beautiful! Parking situation is not bad here since the boardwalk is short hence the turnaround is fast.There is a trail going to the mystic falls. If you are OK walking couple of more miles go for it!