Yes, you need a visa to enter Vietnam.

There are a few options for obtaining a visa, including:

- E-visa US citizens can apply for an E-visa online through the Vietnam Immigration website. E-visas are valid for up to 90 days and can be single or multiple entry. The cost is $25 for a single entry and $50 for multiple entries. E-visas are usually processed within three to five working days.

- Visa on arrival US citizens can apply for a visa on arrival, but it's not available for cruise ship passengers. Cruise ship passengers can ask their cruise operator to arrange a visa for them, or obtain a loose-leaf visa upon landing at a Vietnam seaport.

- In-person or by mail US citizens can apply for a visa in person or by mail. The standard processing time is three business days, but there is an expedited service available with a 24-hour processing time.

Apply for E-visa here: https://evisa.xuatnhapcanh.gov.vn/trang-chu-ttdt -

The wedding will be held in Da Nang (flying into Da Nang International Airport DAD). You may not have a direct flight to Da Nang and may need to stop in Hanoi or Ho Chi Minh City in Vietnam first. Da Nang is about a 1-hour flight from Hanoi and Ho Chi Minh City.

Da Nang weather in April is a prime period for traveling, striking a perfect balance between warmth and comfort. The average temperature in Da Nang in April hovers around 85°F (30°C), providing a pleasantly warm atmosphere. Evenings bring a mild coolness with temperatures dropping to around 75°F (24°C). This mild temperature range in Da Nang in April ensures a pleasant stay, allowing you to explore the city comfortably.

Approximately 30 minutes by taxi from the airport (17km). You can take a cab or use Grab (Uber is not working in Vietnam).

Airport name: Da Nang International Airport (DAD)

Venue address: Shilla Monogram Lac Long Quan, Dien Ngoc, Dien Ban District, Quang Nam Province, Vietnam

Tel: +84-235-625-0088

Shilla Monogram Quang Nam

The wedding will be held at this hotel.

Price from 150$/ room

Please use the link below for the discount code:

Web link : http://www.shillahotels.com/dnmg/resv/rpm/memSetStep1.do?coporateCd=Promotion&coporateVal=0419LYWD&lang=en

Mobile link : http://www.shillahotels.com/dnmg/resv/rpm/mblSetStep1.do?coporateCd=Promotion&coporateVal=0419LYWD&lang=en

The Five Villa & Resort Quang Nam

The afterparty will be held at these villas. These villas are right next door to Shilla Monogram and a very brief walk. They have 3 bedroom villas, 5 bedroom villas, and 6 bedroom villas. Contact us to get connected with one of their booking agents with slightly discounted prices.

Price from 120$/ room

Link:

https://thefive.vn/en/destination/the-five-villas-resort-quangnam-danang

There are some other options:

The Ocean Villa: https://theoceanvillas.com.vn/

Price from 80$/ rooom

The Gold Hotel: http://goldhotel.com.vn/phong.html

Price from 20$/ room

Also check out some option on AirBnb