We love the Grand Pineapple!!!
You will have no issues walking to Alfred's and back as it is literally next door. As SLP's photo shows, the only issue you may have is if you have a little too much fun at Alfred's, you might trip over the net, LOL. The blue lounge chairs are the Grand Pineapple beach.

Just remember that it is not fancy, but it is clean and safe.

Cool runnings! Enjoy!