Cổng Tò Vò

Cổng Tò Vò is a natural basalt arch on the west side of Lý Sơn's main island, about 2km from the port. The arch formed from lava erupted by the Giếng Tiền volcano tens of millions of years ago as part of the island's broader volcanic formation, which left a thick basalt layer at this spot; a softer, less cohesive layer of rock in the middle of that basalt was gradually broken through by wave erosion, reportedly over the last 6,000 years or so, hollowing out the arch shape seen today (some sources instead cite the arch's overall age as roughly 3,000-4,000 years, so treat any specific figure as approximate).

The arch stands about 2.5 metres high - sources give varying figures for its length, ranging from around 9m to 20m depending on exactly what's being measured - and projects toward the sea, framing a view of open water that makes it one of the most photographed spots in central Vietnam. It was officially recognised as a National Heritage Site in September 2025 (Decision 3235/QĐ-BVHTTDL, signed by the Minister of Culture, Sports and Tourism), with a protected area reportedly covering about 26,000 square metres, of which the core arch area itself is just over 420 square metres. The name 'Tò Vò' refers to a type of wasp whose nest the arch is said to resemble in shape.

Standing near the arch and looking back toward the island's garlic fields and Núi Giếng Tiền crater beyond gives the kind of layered shot that travel photographers come specifically to Lý Sơn for.

From the main ferry port, head west along the coastal road toward Chùa Đục; Cổng Tò Vò is about 2km from the port, clearly signposted, and sits right at the water's edge. By motorbike from the port it takes around 10-15 minutes. Chùa Đục is a few hundred metres away on the same road - the two are almost always visited together.

The arch itself is relatively small - impressive for its natural geometry and setting rather than sheer scale, and some visitors find it smaller in person than photos suggest. The surrounding basalt coastline is dramatic, with dark volcanic rock meeting clear turquoise water. At low tide you can walk on the rocks around the base of the arch; from January to April, these rocks are often covered in green moss, seaweed, and small patches of coral.

The area gets crowded during peak season and around sunrise and sunset. Nearby there are a few small food and souvenir stalls, and there's little to no shade, so the midday heat can be intense. Climbing onto the arch itself is prohibited due to collapse risk.

Núi Giếng Tiền, one of the island's volcanic craters and the source of the lava that formed the arch, is visible nearby.

Cổng Tò Vò, Chùa Đục, and the surrounding garlic fields form a natural cluster that most visitors combine in one loop from the port before continuing on to Hang Câu and Núi Thới Lới elsewhere on the island. The full island loop by motorbike is under 20km and takes around 2 hours with stops.

Arrive early or late in the day both for the best light and to avoid the worst of the crowds, which build up quickly once tour groups arrive mid-morning.