Caution: There are many dangers in visiting hot springs, enjoy at your own risk. Below are just a few examples.
If you intend to soak, make sure the temperature and pH is safe before entering (even if you've been to the spring before).
Keep pets on a leash when around hot springs, at least until you know the temperature for all springs is safe--many dogs have died in hot springs that are too hot and many people have died while trying to rescue them.
Wildlife depend on springs, so wildlife encounters are possible.
Primary amoebic meningoencephalitis (PAM or PAME) is rare, but is life threatening--Don't allow the spring water up your nose - avoiding being submerged or standing under a hot spring waterfall such that the water pressure goes up your nose. Avoid inhaling spray when possible.
Be very cautious mixing hot springs and alcohol or other drugs