Information

Tourist Information in Sai Yok National Park

Visitor Centre

This national park visitor centre is 95km northwest of Kanchanaburi and 1.5km along the road from the park's admission fee booth. Little to no English is spoken, but pamphlets are available.
Tourist Information in Kanchanaburi Province

Erawan National Park Visitor Centre

For booking bungalows and getting park information and directions. English is limited but staff members are helpful.
Tourist Information in Ayuthaya

Tourism Authority of Thailand

Has an information counter with maps and good advice at the Ayutthaya Tourist Center.
Hospital in Lopburi

King Narai Hospital

For monkey bites and other health needs. Ideally, bring a local if you can't speak Thai. It's 5km east of the old town.
Tourist Information in Thong Pha Phum

Thong Pha Phum Tourist Service

Pamphlets can be grabbed outside this tourist information office even when it's closed.
Hospital in Ayuthaya

Rajthanee Hospital

Private hospital with some English-speaking doctors, 5km east of the island.
Tourist Information in Kanchanaburi

Tourism Authority of Thailand

Provides free maps of the town and province, along with bus timetables.
Pharmacy in Kanchanaburi

Pharmacy

Sells over-the-counter medication. Yes, they have mossie repellent.
Police in Kanchanaburi

Tourist Police Booth

Near Death Railway Bridge.
Travel Agency in Ayuthaya

Tour With Thai

Offers bicycle and motorbike hire (from 40/200B per day).