Where should we go on our honeymoon? Vietnam, Japan, or Thailand?

We’re getting married this year and plan to leave for our honeymoon 10/13-10/26 or 27 from EWR or PHL. We’re going to Europe in 2026 but after this we’ll want to start family planning. I’m really open to suggestions and below are our wants! We’d love a blend of relaxation, culture, and adventure!

We’d like to keep this trip around $7,000 without flights but the budget is a bit flexible. We’d probably want to save on hotels except for 2-3 nights in a nice relaxing hotel. My FH and I are more likely wanting to explore everyday.

Things we want to do on the honeymoon: Relaxing (onsen, beach, spa day one of these days, quite village with a beautiful view) for at least a 2-3 nights of the trip, museums/ historic areas, fun things to do, hiking or areas to walk around and sightsee, any outdoor activity, some touring and going to various areas but we’d like to limit it to staying in each city/ resort for 2-3 nights at least. We love the beach or lake which I feel like Vietnam, Thailand, or Japan would satisfy! Thanks in advanced!