Concierge.com's insider take:

Costa Rican architect Ronald Zürcher, who cut his teeth on his brother Harold's famous and beloved Hotel Punta Islita, was responsible for the design of this flashy resort. If you prefer to experience nature with L'Occitane products in your outsize soaking tub, speedy 24-hour room service delivered to your broad balcony, and high-thread-count linens on your plush bed, this is the place for you. The resort straddles the northern extreme of the Nicoya Peninsula, with the Pacific Ocean on one side and the calm Bahía de Culebra on the other. But don't expect smashing views: Most of the 173 rooms are shaded by the tropical canopy. In summer, the trees thin out at the top, so opt for rooms on the upper floors for an ocean outlook. Hit the Arnold Palmer golf course or treat yourself to a Selva de Osa mud mask in the Serenity spa after dumping the kids at their own (free) club; there's even a separate program for teens. Four Seasons has four dining options, the most popular of which is the formal restaurant Di Mare, serving Italian fare.—Updated by Christopher P. Baker