Santichaiprakan Park and Phra Sumen Fort: sunset over the river in Banglamphu

Updated on October 5, 2026

Santichaiprakan Park (Santichaiprakarn) is a small public park on the bank of the Chao Phraya, at the end of Phra Athit Road in the Banglamphu district, ten minutes' walk from Khao San Road. It holds Phra Sumen Fort, a white octagonal bastion built in 1783 under Rama I to guard the entrance to the canal around the old city; it is one of only two forts of the Rattanakosin wall still standing, with Pom Mahakan. People come at the end of the day to watch the sun go down over the river, among families and joggers. Entry is free; allow an hour, more if you stay for the sunset.

Highlights

Phra Sumen Fort

This white octagonal bastion is seen from the outside from the park lawn; it cannot be visited inside. It is the last remnant of the city's river defences, whose wall was largely destroyed in the 20th century.

The Santichaiprakarn pavilion

The park takes its name from a small Thai-style pavilion standing in its gardens, especially beautiful in the golden light of late afternoon. Its surroundings serve as a backdrop for photographers.

The riverfront

A promenade runs along the water, with benches facing the Chao Phraya and the Rama VIII Bridge in the background. It is one of the quietest spots in the old city to see the sun set without paying.

The lamphu tree

The Banglamphu district takes its name from the lamphu tree (Sonneratia), which grew abundantly here. A tree planted in the park recalls this origin.

Infos pratiques

Tips

Entry is free and the surroundings of the fort are open to all. In the evening the park fills with local residents exercising outdoors: the atmosphere is family-friendly. Bring mosquito repellent after sunset. For a full programme, combine the walk with Phra Athit Road, its cafés and the Banglamphu district, then Khao San Road for dinner. The guide to Bangkok's viewpoints lists the park among the good free views of the river, and the guide to the Dusit district extends the visit northwards.

How to get there

Phra Athit Road, Banglamphu, Bangkok 10200. Chao Phraya Express boat: Phra Athit pier (N13), a few steps from the park. There is no metro or BTS station nearby: on foot, allow about ten minutes from Khao San Road, or take a taxi.