Heritage quarter · พระประแดง (สมุทรปราการ)
Bang Krachaoบางกะเจ้า
The green lung — a river-ringed jungle of orchards, stilt paths and temple crafts.

The Chao Phraya makes one last extravagant loop before the sea, and inside the loop is Bang Krachao: sixteen square kilometres of orchard, nipa palm and swamp forest that development never crossed the river to reach. Administratively it is Phra Pradaeng district of Samut Prakan, not Bangkok at all — but it is Bangkok's green lung, the wall of trees every high-rise west window looks onto, and TIME called it the best urban oasis in Asia in 2006.
It stayed green by law and by luck: a 1977 cabinet ruling froze most of it against development, and the mainland's bridges never came. The crossing is still a long-tail ferry from Khlong Toei — two minutes and a few baht from the port's container cranes to a jetty under coconut palms. From there the quarter is best moved through by bicycle, on a network of elevated concrete paths a metre wide, threading between fish ponds and under fruit trees at handlebar height.
Sri Nakhon Khuean Khan park keeps the core as botanical wetland with a birding tower; the Bang Nam Phueng weekend market feeds the whole island from boats and orchard stalls; and at Wat Chak Daeng the monks run Thailand's best-known temple recycling programme, spinning donated plastic bottles into saffron robes. Nothing here is on the Fine Arts register — Bang Krachao's heritage is the landscape itself, which no gazette volume knows how to hold.