Our first accommodation in Thailand was cancelled 2 days before we were due to arrive, so we ended up in a completely different place in Krabi, we stayed at the Beyond Resort, west of the mainland. We didn't venture very far from the resort, just down the road to a local restaurant. We sat on the beach for a full two days and did as little as possible.
Beyond Resort is beautiful, but a bit pricey, so it was well worth the walk to the nearby local restaurants to eat and get drinks. The pool was incredible, overlooking the beach, warm temperatures, which I prefer to chilly swims, although I may be alone on that one.