Looking for some recs for December 2026 traveling from Florida

We be getting married the first weekend of Dec in 2026. We live in South Florida so beach-forward destinations are not top of mind.

I have always hoped for and envisioned my honeymoon to be in Greece but my fiancé works in Major League Baseball and basically December is the only time we can travel.

We are early in wedding planning and did open up a chase sapphire preferred card so I am starting off with 75,000 points on the deposit alone. We plan to do a honeyfund and have our “gifts” go toward the honeymoon. Because of his work schedule if we don’t go on honeymoon right after we get married, it’ll be another year and we’re a little older so hoping to get pregnant right away.

I’m open to cold or warm I just want a good mix of activity and relaxation and to keep in mind that this is a once in a lifetime vacation.

I’m most interested in Iceland for northern lights, hot springs, unique experiences or Norway for similar reasons but also looking into St. Lucia as a southern destination possibility because I know the sandals resorts are incredible. I want to go somewhere I will feel safe overall. I would prefer something all inclusive if possible and open to working with travel agents or a travel company just don’t want to break the bank and hoping to stay under 10k.

I have no clue where to start. Any ideas/recs?