There is a complementary shuttle bus service from Black Mountain to downtown Hua Hin.
The bus departs from the garage at Black Mountain.

Departure times: 

11.00 am
12.30 pm
1.30 pm
2.30 pm
3.30 pm
4.30 pm
6.30 pm

The ride to Hua Hin takes about 20 minutes.

There is no shuttle service from Hua Hin to Black Mountain. Taxi/tuk-tuk cost about 400 bath one way.