As a pro of organised trips or guided visits, your next destination is Vietnam, you aren't going to break your habits are you? So plan to explore the country with a local French speaking guide. It's also good to know about guided visits of Vietnam with an expert on the area.
Vietnam offers a wide choice of great honeymoon destinations. Romantic or cosy, you'll find luxury hotels and bungalows both in towns and by the sea. There's something for all tastes and budgets.
If you are going to travel to Vietnam, you need to appreciate that easy handicap access is rare, but even if the journey won't be simple it's still possible.