Getting there — the one real obstacle
Wat Yan sits about 20 kilometres south of Pattaya, and there is no songthaew route and no practical public transport. That single fact keeps the crowds down and is also the reason many visitors never make it. Realistic options are a rental car or scooter, a Bolt or Grab (expect roughly 400–600 THB each way, and agree a return or be prepared to wait for a car in a low-demand area), or folding it into a southbound day that also takes in Khao Chi Chan, Silverlake vineyard, Nong Nooch or the water parks — they all sit on the same corridor.
The grounds are open daily from roughly 08:00 to 17:00 and entry is free. Donations are welcome at the wat but never solicited.

