If you like the beach, warm weather, sand, hanging outdoors and chilling with friends then go to Boynton Beach! I went there last year in June, and had a great time - there is so much to do! The beach is clean, the sand is soft and the water is perfect.
The food in Boynton Beach is great - if you have a chance to go the Purple Lotus Kava Bar, then go! It is West Palm Beach, which is only a 10 minute drive at most. There is so much to do in Florida in general, and we saved a lot on hotels being 30 minutes away from Delray, West Palm Beach, Lake Worth and Boca Raton.
The Loxahatchee National Wildlife Park is something that nature lovers will enjoy. You can see the Florida Everglades, and I even saw a alligator. The beach is nice and sandy, not too crowded and you can rent gear nearby to snorkel, surf, and do some water sports. You can even purchase a ticket aboard the the Seamist III, and go fishing for around $40.00 per person.
I had a great time in Boynton Beach... make sure you rent a car and visit the nearby cities, because its worth it!