The 2013 National Geographic Traveler Photo Contest is accepting submissions. Now in its 25th year, this photo contest offers a top prize that includes a 10-day expedition to the Galapagos Islands and publication of the winning image in the upcoming December/January edition of National Geographic Traveler magazine. The entry fee is $15 per image and contestants can submit as many images as they wish. Submissions must be received by June 30.

Images can be submitted in the following categories: Travel Portraits, Outdoor Scenes, Sense of Place and Spontaneous Moments. You must register to log in to the contest web site and can do so via your social media accounts from Facebook, Yahoo or Google. You can view a selection of the National Geographic editor's favorite submissions to date in the galleries section of the National Geographic Traveler web site.

Green Glow. Photograph by Lace Andersen. Category: Sense of Place Moments Child Soul. Photograph by Mauricio Pisani. Category: Spontaneous Moments
Music Collector. Photograph by Melih Sular. Category: Travel Portraits The house stands, the lights are on ... Photograph by Alexander Nerozya. Category: Outdoor Scenes