The 26th annual National Geographic Traveler Photo Contest is now open for entries. The winner will receive an eight-day expedition to Alaska for two.

Photographers can submit travel photos in four categories: Travel Portraits, Outdoor Scenes, Sense of Place and Spontaneous Moments. Entries close on 30 June.

IBTimesUK presents a selection of photos that have already been received. See more – and enter your own pictures – on the National Geographic website.

A local guide arriving at a remote ice cave in southeast Iceland
A local guide arriving at a remote ice cave in southeast IcelandMarcelo Castro
The Wave (a sandstone rock formation in Arizona) after a heavy thunderstorm, with a small pond granting a perfect mirror for the reflection of the hiker
The Wave (a sandstone rock formation in Arizona) after a heavy thunderstorm, with a small pond granting a perfect mirror for the reflection of the hikerNicholas Roemmelt
Aurora Borealis over a forest in the Pyhae Luosto National Park, Finland
Aurora Borealis over a forest in the Pyhae Luosto National Park, FinlandNicholas Roemmelt
A dramatic night sky behind a little church in Tekapo, New Zealand
A dramatic night sky behind a little church in Tekapo, New ZealandSebastian Warneke
A young monk in Old Bagan, Burma, finds a perfect light source inside his pagoda from which to read his book.
A young monk in Old Bagan, Burma, finds a perfect light source inside his pagoda from which to read his book.Marcelo Castro
An owlet peers out from its nest in Florida
An owlet peers out from its nest in FloridaGraham McGeorge
Typical red rorbu huts with sod roof in Reine on Lofoten, Norway
Typical red rorbu huts with sod roof in Reine on Lofoten, NorwayDavid Sausse
Huge iceberg sculptures on a volcanic black beach on the Jökulsárlón lagoon in Iceland
Huge iceberg sculptures on a volcanic black beach on the Jökulsárlón lagoon in IcelandSam Morris
Cherry blossoms welcome the spring in Japan
Cherry blossoms welcome the spring in JapanHideyuki Katagiri