You should totally check out Nice on the French Riviera . Gorgeous beaches, people and a ton of fun. It’s definitely the most doable city on the Riviera if you are on a budget so it attracts alot of young party going backpackers and such. After you are all partied out from Nice you should check out Cinque Terre on the Italian cost, it is hands down the most beautiful place I have ever seen. Essentially C.Terre is 5 very old fishing / farming towns are built right into the green cliffs leading right up to the coast. There is a trail in between the towns that has been used for centuries. The hike is about 4.5 miles with some steep terrain but breath taking views. You should definitely check out some pics on google search, you will see what I mean. There is cliff diving, kayaking and, scuba. The water is crystal blue with rocky beaches with huge boulders to sunbath on, again beautiful people and a nice chill crowd of backpackers. This summer I’m plaining to check out some beach towns in Spain this summer, they are supposed to be a lot of fun, I also plan to hit up some more beach towns in Italy. Hope this helps, you won’t be disapointed.