The walk is not that long from the Grand Pineapple to Coco La Palm. We walked from GP to check out CCLP and vice versa. It took about 10 minutes by foot along the beach. GP is an AI so you need a wristband to enter the bar area but It will be easy for your friends to visit you at the CCLP bar/restaurant. There are also plenty of places to meet up inbetween the two hotels.