To coincide with last week's National Parks Week in the UK, we chose national parks as the subject for our weekly Twitter chat (follow #RGchat from 11am GMT on Tuesdays).

Whether it's for the peace and tranquility they offer, the chance to escape the modern world or to get closer to nature, there's one thing you all agreed on – they sure are photogenic. We were so impressed with the images you shared that we've decided to round up our favourites.