A popular day-trip from Hua Hin is 63km west to the fifteen-tiered Pala-u Waterfall, situated close to the Burmese border and within Kaeng Krachan National Park. Though the falls themselves are hardly exceptional, the route there takes you through a lush, hilly landscape and past innumerable pineapple plantations. There’s no public transport to the falls, but every tour operator features them in its programme. To get there under your own steam, follow the signs from the west end of Thanon Chomsin along Highway 3218. Once inside the park you’ll see hundreds of butterflies and may also catch sight of monitor lizards and six species of hornbills. A slippery and occasionally steep path follows the river through the fairly dense jungle up to the falls, passing the (numbered) tiers en route to the remote fifteenth level, though most people opt to stop at the third level, which has the first pool of any decent depth (full of fish but not that clear) and is a half-hour walk from the car park.
Hua Hin also offers excursions to Khao Sam Roi Yot National Park, Phetchaburi and Amphawa floating market, not to mention the old summer palace of Phra Ratchaniwet Marukhathaiyawan just to the north. In addition, a number of activities are available, such as cycling and kiteboarding.