Hi Mick
Yes Visas are required for Vietnam, Cambodia and Laos. If you were to use the Just You visa service, these are priced as follows: Vietnam from £100, Cambodia Visa from £58. The Laos visa is issued on arrival and you will need to pay approximately $40 to be paid in cash.
The proposed hotels are....
4-star Tara Angkor Hotel in Siem Reap (3 nights), 4-star Luang Prabang View in Luang Prabang
(2 nights), 4-star Sunway Hotel in Hanoi (3 nights), 5-star Bhaya Cruise on Halong Bay (1 night), 4-star Sun
Spa Resort in Dong Hoi (2 nights), 4-star Hoi An Beach Resort in Hoi An (2 nights). Hotel facilities include a bar
and restaurant. Bedrooms feature private facilities and air-conditioning.
Hope all of this information helps.
Kindest regards,
Julia