Post office The GPO is at 1160 Th Charoen Krung (aka New Road), a few hundred metres left of the exit for Wat Muang Kae express-boat stop. Poste restante can be collected Mon-Fri 8am-8pm, Sat, Sun & hols 8am-1pm; letters are kept for three months. The parcel packing service at the GPO operates Mon-Fri 8am-4.30pm, Sat 9am-noon. If staying on or near Th Khao San in Banglamphu, it's more convenient to use the poste restante service at the post office on Soi Sibsam Hang, opposite Wat Bowoniwes (Mon-Fri 8.30am-5pm, Sat 9am-noon). Letters should be addressed c/o poste restante, Banglamphubon PO, Bangkok 10203 and are kept for two months. You can also send and receive faxes there on tel 02/281 1579. If staying on Th Sukhumvit, poste restante can be sent to the Th Sukhumvit post office between sois 2 and 4, c/o Nana PO, Th Sukhumvit, Bangkok 10112.