Giant Raintree

The Giant Raintree (Samanea saman) in Ko Samrong, Mueang Kanchanaburi, is a single rain tree estimated at over 100 years old with a canopy spanning roughly 51.75 metres across and standing about 20 metres tall — big enough that it takes around ten people with linked arms to circle the trunk. Entry is free, there’s no dress code, and it’s open daily from 06:00 to 18:00.

The tree stands on land once run by a Royal Thai Army veterinary and agriculture unit, near the army’s cavalry stud farm south of the city — not a restricted barracks, but worth knowing before you show up expecting a normal municipal park. There’s a mown clearing under and around the canopy where people park, walk the perimeter, and take photos looking straight up into the branches. The shade is real and noticeably cooler than the open road outside it, which is most of the appeal on a hot Kanchanaburi afternoon.

Watch out: this is a quick stop, not a destination in itself. There’s no ticket booth, no café, no shop — just the tree, a patch of grass, and a place to pull over. Most visitors spend 15 to 20 minutes here on the way to or from somewhere else, typically Erawan Waterfall, Hellfire Pass, or the Bridge over the River Kwai. Budget accordingly and don’t drive out here as a standalone trip unless you’re specifically chasing the photo.

Insider Tip: Wat Tham Mangkon Thong sits about 5 km north, so the two make an easy combined stop if you’re already heading that direction along Route 3209.

The tree sits inside Kanchanaburi district, a short drive from central town, and works best as a five-minute detour bolted onto a day of waterfalls and war-history sites rather than a planned excursion on its own. For the nearby temple, see Wat Tham Mangkon Thong.