There are three Sandals in St. Lucia: Sandals Halcyon, Sandals Grande St. Lucian, and Sandals Golf & Spa. The last two will probably be more expensive than the first one. Also, only boy/girl COUPLES are allowed at Sandals.
Just have to say this, and hope I don't get flamed too badly: People, usually Honeymooners, plan months in advance and pay a small fortune to stay at Sandals Resorts. They are wonderful, and offer one of the BEST romantic packages available. The biggest complaint about Sandals that I heard from returning honeymoon/Anniversary clients was that they really hated the influx of cruise ship passengers that showed up during the week on a fairly inexpensive day pass, while they paid thousands for their stay there. I, for one, hope Sandals stops offering those day passes. I've heard that they are slowly trying to phase them out by raising the prices and limiting the number of people who can buy them. This is just my opinion.