Hello, just joined. Taking our 5th trip to Jamaica in September and arriving on my 50th birthday to an all-inclusive. Would like to walk the beach and stop at some bars and gift shops along the way. Have stayed in Montego Bay, Ochos Rios, Negril & Whitehouse. If I change 100 US at the airport, will that be sufficient for enough Red Stripes & rum punches between Bloody Bay & the Grand Pineapple?