Yes, there are several store fronts where you can rent paddle boards, bikes, chairs, and umbrellas.
Keep in mind that if you're renting from storefronts so to speak, you will drive pick up the rental equipment use it clean it and then return it back to the store Front. This is not concierge service. So you have to weigh out whether it's worth it to buy something that is inexpensive that you will just leave behind from your vacation or if you're staying long enough that it warrants renting equipment in driving it around the island.
If you're staying at a resort they most likely have equipment you can use too.
Thanks! Your answer is awaiting moderation.