Myrtle Beach is the best place to go for teenagers. There is plenty to do and it's not near as expensive as other vacation hot spots. There is always a party going on where everyone is invited (well most of the time). There are plenty of teens that are trying to do the same as you (party, swim, get lucky). If you want to walk on the beach and meet new people and have a ton of fun, Myrtle Beach is the place to go, but you've got to make sure you're at the right place. The strip is where all the life is -- arcades, stores, hotels, hot babes, parties.
Myrtle Beach rocks! I love the amusement parks and attractions, and especially the hotels.
I've been to a lot of beach towns, but Myrtle Beach is one of the best for the younger crowd. Everyone is friendly and people actually talk to other people, unlike most beaches.