The PGSIG is the 'Physical Geography Special Interest Group' of the GA.
The theme this year is 'Physical Geography in Process'
All the details, examples and terms and conditions can be found on the webpage above.
The deadline is in September, so this will make a useful summer challenge for students, perhaps with a school prize as well as submitting them for the actual competition which comes with a range of Paramo clothing and other smaller prizes for the best entries according to the judging panel.
Image: Alan Parkinson - the Old Man of Storr, Isle of Skye