Original ideas for romantic things to do as a couple? Help please!

Bare in mind this is quite a new relationship, we’ve been seeing eachother since march but only been a official couple since a couple of weeks ago.
Although it may seem a bit abrupt as we havent been seeing eachother for years of anything I can genuinely say that I haven’t cared so much about a relationship before, so I really would love to actually make a effort to make it work. Thing is we’ve hardly been out properly just us two as we’re students so money is a problem. The other day he talked about doing something nice and he suggested watching the sunset together, which we will probably do soon, and we’ve already fed the ducks and walked in parks and what not. But recently we’ve spent most of the time stuck in the uni accomadation. The other day he asked me what was something that I had always wanted to do… And I literally couldn’t answer! I really tried hard to think of something and to be honest I think it’s something everyone should be able to answer but for some reason I couldn’t.
Anyway he’s away on a film shoot for another week and a half so when he get’s back I really would love to have a few ideas at the ready – that way we can hopefully learn more about each other and have fun experiences to share, instead of us just being stuck in the uni accomadation. The only thing I’ve thought of is having a long walk on a beach at midnight.
I’ll admit I feel ridiculous asking but please can I have some help with some ideas? If possible can they be quite original, as in not going to the cinema or going out for dinner. And money-free or at least cheap :) thanks x