Búri
Hellar

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Búri

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TypeLava tube
Length1000 m
DifficultyChallenging

Notice: The lava cave Búri is closed to the public. Access is not permitted without special permission.

Búri is a lava cave located on the Reykjanes Peninsula and is considered one of the most impressive caves of its kind in the area. Reaching the cave is difficult and the terrain is challenging, requiring both experience and proper equipment. From Reykjavík, the drive to the area takes around 40 minutes, followed by approximately one hour of hiking to reach the cave entrance.

The cave was first discovered in 1992 and was initially believed to be only about 40 meters long. When new passages were opened in May 2005, it became clear that Búri extends for nearly 980 meters in total length, placing it among the longer lava caves found in the region. This discovery attracted significant interest from speleologists and nature enthusiasts alike.

The collapse leading into the cave was discovered on June 13, 1992, by experienced caver Guðmundur Brynjar Þorsteinsson. A short and heavily collapsed tunnel leads upward from the entrance, while the southern route was long blocked by large boulders. Following further exploration and excavation in 2005, explorers entered a large chamber where impressive ice formations revealed the cave’s true scale and beauty.

Although access to the cave itself is restricted, the surrounding area offers many points of interest. Nearby is Arnarker, another notable lava cave, as well as the popular Raufarhólshellir, which can be visited with guided tours. Outdoor enthusiasts also frequent Bolalda and Vífilsfell, while the coastal town of Þorlákshöfn offers various services, including a disc golf course and a swimming pool.

Source: mbl.is

Lava tube
Helmet required
Headlamp required
Special equipment

Geology

A very large lava tube with spacious chambers as well as narrower passages.

Safety

Sections are narrow and difficult to traverse and are best suited to visitors in good physical condition.

Last verified 16 September 2026 Source

Ratings and reviews

Búri

Búri er hluti af fjölbreyttri náttúru Íslands og býður upp á áhugaverða upplifun fyrir gesti.