How much money should I take on a youth trip to Calella (6 days as a 16-year-old)?

I'm going on a youth trip with a friend for 6 days this summer (to Callela with Ruf Jugendreisen) and I don't know how much money I should take with me… (apart from the activities that you can book), i.e. for shopping, eating, etc. Can anyone help me?

A 15-year-old youth trip to Calella, Malgrat or Rimini?

A friend, who is also 15, and I are planning a youth trip this summer. We're going to either Rimini, Malgrat de Mar, or Calella. We're looking to go shopping, chill on the beach, and party, but we're worried about not being allowed into the clubs in Calella, for example. We'd also like to meet…

How many buses are there with ruf youth travel from Berlin to Calella?

Hello, I'm traveling to Calella with Ruf in August. My boyfriend and his two friends have each other's names on the list so they'll be in the same room. My question is, should he also list me, but then one of his friends might not be in the same room with him? Or is there…