The 180-room resort, formerly known as the Grand Pineapple Beach Antigua, was offloaded by the operator in February.
It will trade as an adults-only all-inclusive resort in the north east of the island on Long Bay Beach and has retained all resort staff during the transition period.
Paula Whitehead, European managing director of Elite Island Resorts, said: “We are really excited about this fantastic new addition to our Caribbean resort portfolio. Pineapple Beach Club is an excellent, all-Inclusive beachfront resort located on one of the most beautiful white sand beaches on Antigua.”