The Mangrove Boardwalk

I'll be honest with you: I haven't walked this one yet. It's been on my list since the first time I drove past the turnoff, and every time I've been in Pak Nam Pran the mornings have been claimed by kite wind or sunrise or both. But I've read enough, spoken to enough people who've done it, and driven close enough to know exactly how I'm going to spend the first calm morning I have without wind.

That morning is coming. When it does, this is where I'm going.

What It Is

Pranburi Forest Park sits at the mouth of the Pranburi River where it meets the Gulf, about 14 kilometres from the villa via Route 1019 — twenty minutes on a motorbike, maybe less. The park was established under the patronage of Queen Sirikit, originally as a forest recovery project on land that had been cleared for shrimp farming. What came back is extraordinary: 3.17 square kilometres of protected mangrove forest, one of the best preserved stretches of coastal mangrove on this part of the Gulf coast.

Entry is free. There is parking. You just show up.

A Forest That Almost Wasn't Here

The mangroves you're walking through were nearly gone before anyone decided to save them.

Through the 1970s and 80s, shrimp farming was stripping the Pranburi River estuary — an industry that cleared mangrove forest at scale across coastal Thailand, leaving dead water and ruined mud in its place. What stopped it here was a royal visit. Queen Sirikit came to Pak Nam Pran Buri village, saw the mangroves, and decided they needed protecting. The Forestry Department created the park in her name.

Later, in 1996, King Bhumibol and Queen Sirikit returned, saw the continuing damage from shrimp farms further along the estuary, and the Royal Forest Department implemented a full ban on farming along the river mouth entirely. On 16 November 2002, the King came back again — this time with Princess Sirindhorn — to inaugurate the Sirinart Rajini Mangrove Learning Centre just across the river. He and the Princess planted red mangrove trees that day. They're still there, growing.

The old water gates from the original shrimp farms have been deliberately preserved at the entrance to the learning centre — a reminder of what this land was before people decided it should be something else.

The forest you're walking through is roughly 40 years old. In mangrove terms, that's young. In human terms, it's a decision that was made just in time.

The Boardwalk

The main attraction is a one-kilometre elevated wooden walkway that winds through the heart of the mangrove forest in a loop — no side trails, no wrong turns, no getting lost. It takes between 30 and 45 minutes depending on how much you stop, and by most accounts stopping is exactly what you do.

The boardwalk sits above the tidal zone. At low tide the forest floor is exposed — dense mangrove roots rising from dark mud, and on that mud, thousands of fiddler crabs going about their business. Fiddler crabs are the males with one oversized claw, waving it with an energy that seems disproportionate to whatever they're trying to communicate. At high tide the water comes up, the mud disappears, and you might instead hear the sound of a monitor lizard sliding into the water below you. Either way, something is happening.

Over 110 bird species have been recorded in the park. Four species of kingfisher alone — collared, black-capped, common, and white-throated. If you know kingfishers, you know that one flash of electric blue through the mangroves is enough to make the whole trip worthwhile. If you don't know kingfishers yet, this is a good place to start.

Halfway along the loop, the boardwalk rises to canopy level. The forest opens up, the sky appears, and there is a watchtower for birdwatching and a view over the full sweep of the reserve. This is the photograph.

The boardwalk rises to canopy level halfway through. The forest opens, the sky appears, and the whole reserve spreads out below you.

The Boat

At the western end of the boardwalk, local fishermen offer long-tail boat trips along the Pranburi River and through the mangrove canals. Around 400–450 baht for up to four people, 45 minutes. The river takes you past the fishing village, through mature mangroves that are over a hundred years old in places, and out toward the river mouth. People who have done this consistently say it's the better half of the visit. I believe them.

A Note on Timing

Go early. The park is shaded for most of the boardwalk, but the morning light through the mangrove canopy is something different — low and filtered, the water catching it between the roots. By 9am you're back at the villa. The afternoon is for the beach.

Also check the tide. Low tide gives you the crabs and mudskippers on the exposed floor. High tide gives you the water beneath you and the sound of things moving through it. Both are worth seeing, but they are different experiences.

Why I Haven't Gone Yet

The mornings I've been in Pak Nam Pran have had wind. And when there's wind, the beach calls first. But there will be a still morning — there always is — and when there is, this is the walk. Forty-five minutes through one of the best-preserved mangrove forests on the Gulf coast, a kingfisher if you're paying attention, a boat if you have time. Free entry. Back before the heat arrives.

I'll report back.