cancellation policy for flowrider lesson?

DH and I are interested in signing up for a FlowRider lesson. We go on the Oasis of the Seas next week. But I hurt my shoulder a few weeks ago and I'm just on the cusp of whether it will be doable or not.

If I wait, I suspect the lessons will be all booked. What is the policy if I book but then need to cancel on board? Can I cancel 24 hours or 48 hours or ?. Will I get a full or partial refund?

I think it recently moved to 48 hrs. You should get a full refund. You could just try boogie boarding on a regular day to see how things go.