the.com/hot spring

Earth's way of running a bath it never invites you to turn off.

means A natural pool fed by groundwater that's been heated underground by geothermal activity, often rich in dissolved minerals.

from Plain compound of 'hot' and 'spring' — spring here meaning a place water leaps or wells up from the ground, from Old English 'springan,' to jump or burst forth. No exotic backstory needed: the name just describes exactly what it is, water that springs up already warmed by the rock it passed through.

heat source
magma or decaying rock warms groundwater below
mineral stew
sulfur gives that rotten-egg smell, free of charge
danger zone
some exceed 160°F, cooking first, questions later
microbial life
thermophiles thrive where nothing else survives
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