Late January/Early February 2025 surprise honeymoon recs?

Hi everyone!

New to this subreddit and on mobile so I’m sorry for any formatting errors!

I’ll (F) be getting married in late January 2025 in the UK. My husband-to-be is wonderful and he has contributed significantly to the wedding.

Because of this, I wanted to book a surprise honeymoon for us both to fly out to a couple of days after the wedding.

The budget is around 4-5k (GBP), and ideally I’m looking at booking somewhere that is warm/hot, fun, relaxing and not too far away (I think the limit would be around 10-11h flight time).

Does anyone have any suggestions? Right now, my thinking is Costa Rica but hotels seem to be so expensive. Just wanted to throw the question out there to get some suggestions really!

Any help would be appreciated 🙂

Thanks!