Set around 140km from Yala, in a hilly district that borders with Malaysia, Betong is not a ’hill station’ by any standard, though the nights here are cooler than elsewhere in the immediate south. Almost completely surrounded by rubber plantations, this is a good place to see all the rubber being collected and trucked away.

Rubber and mist aside, Betong is famous for three other slightly more unusual reasons; firstly for its Siberian swallows (it is easier for them to get here than you as they don’t have to worry about the hairpin turns), hundreds of thousands of which migrate here every year to perch on the city’s rooftops and weigh down the electricity cables.

Secondly, Betong has the world’s largest postbox. It seems unlikely that Betong’s postmen could ever get that busy, but built in 1924 this British style red pillar post box stands towards the northern end of town. The mailbox has been heightened a few times and will no doubt continue to grow—luckily a palm tree grows beside it to give scale to your photos. The postbox is a functioning one so you can post your swallow shit covered postcards here for added prestige.

Lastly, Betong is home to the Piyamit Tunnels — tunnels excavated by Malay communists in 1976 to avoid bombardment. The network of tunnels stretches for over a kilometre and is in a lush jungle setting. While not a scratch on the Cu Chi and Vinh Moc tunnels in Vietnam, these are nevertheless still well worth visiting and are arguably the most interesting "attraction" in the town".

If you’re in the market for a viewpoint, the Phramahathat Chedi sits atop a hill at the eastern edge of town. The chedi has an interior display on the first floor with renditions of many of the most famous chedis in Thailand, while the chedi itself is faced with four sparklingly gold Buddhas in four different poses. At the base of the chedi is a massive 80m tall bronze Buddha—reportedly the largest in Thailand. The views from the top of the chedi over town are splendid.

Betong itself is compact and bustling and an interesting place to explore with plenty of friendly locals around. Due to the proximity to Malaysia, it has a multicultural feel to it with the population mix being 50% Muslim, 40% Chinese and 10% Thai Buddhist.

As with other southern Thai border towns, Betong does have its seedy side catering to Malaysian men popping over the border to pay for sex, but casual tourists are unlikely to come across much of this—it is hardly Pattaya.