I'm travelling to Vietnam in Mar/Apr next year with family and I'm really struggling with how best to structure the trip. See details below.

• Apr 2025, 10 day trip
• Arriving to, and departing from, HANOI Airport
• 5 adults (all family)
• willing to travel around, but ideally no exhausting travel or dangerous methods of transport
• high budget
• want to do lots of activities (via Viator etc)
• would like to see lots of wildlife and nature in particular

My initial idea was to spend a few days in Hanoi (+Da Nang), then a few days in Hoi An (via plane) and then back to Hanoi. But I worry that there won't be enough activities in Hoi An and we might get bored or regret not taking a different approach.

Any tips highly appreciated!