Outdoor Gym (calisthenic)
PFXW+M23, Khwaeng Phra Borom Maha Ratchawang, Khet Phra Nakhon, Bangkok 10200
This outdoor calisthenics gym in Phra Nakhon's old royal quarter, near the Grand Palace, is a free-air workout spot rather than a staffed facility. It records a 5.0 rating from 4 Google reviews and lists a toilet on site. No opening hours, phone, or website are posted, which fits an open public training area. Useful for travellers near Rattanakosin who want bodyweight equipment without a membership, though the review count stays low.