Yes - and Costa Rica has some of the most distinctive off-site venue options of any destination on this site. Cliffside venues overlooking the Pacific, private rainforest reserves, hot springs gardens with volcano backdrops, and remote eco-lodges that take over the entire property for your weekend.
Off-site venues give you more flexibility on timing, design, and the overall feel - and the best Costa Rica weddings often pair an off-site ceremony with a resort stay so guests still get the full vacation experience. You get the private venue, they get the resort, everyone wins.