@Katie-and-Chris2 , @Lorna170
This is similar to the kayak conversation, feel free to search the community above.
There are professional rental services for these types of activities. They have the waiver contracts, insurance, etc. Why recreate the wheel when you can avoid the liability and challenges when all you need to do is provide the contact information for (hopefully) local service providers.
We have kayaks and removed them from the cottage. Insurance companies, from our perspective, are not recreational vehicle friendly.