Boils at 85 degrees Celsius. The rules at the geysers - 1. Keep yours eyes on the geysers (no selfies, and don’t back up when taking a pic) 2. Don’t touch the water 3. Stay outside the rock barriers and don’t stand on the walls. There are 27 deaths due to the geysers...(no worries mum...all good). Some tourists, some scientists...they don’t discriminate!