@Frances3408
That's fine Frances and you are on safe ground. If a guest chooses to use whatever facilities your local area has to offer while staying, so be it, that is at their risk.
What I am addressing is this thread question and the risk a host subjects themselves to by offering their own equipment for guest use.
I have a couple of really good pushbikes here, one of them a competition road bike, and there are many kilometres of cycle-ways/pathways just outside the property........but there is no way I would offer them for guest use.
If they want to hire bikes from the local bike shop, that's fine, but that doesn't expose me to any risk of injury or damage claim! The same if a guest wants to hire a treadmill or a weight-bench from a local fitness supplier to use on your property. That is their risk not yours.
Cheers........Rob.