If you want to get wild (and we're not talking about partying until the sun rises here) on your bachelorette excursion, then stay in the throws of the rugged rainforest in a truly spectacular corner of the world. The Tabacon Thermal Resort & Spa is a hot springs resort in Alajuela that puts you and your girls at the base of the Arenal Volcano and in the thick of the Costa Rican jungle.