Mljet National Park (9/10) List item Submitted to "Top 10 sights to see in Croatia – the heart of the Balkan countries" Approved by Fortune July 28, 2017, 1:25 pm 20 Views 7 Votes Share Tweet Pin Source It’s a large area with a border of two lakes with salt water. MoreReport Item navigation Previous submission Next submission View full list Share Tweet Pin Written by Fortune Leave a Reply Cancel replyYou must be logged in to post a comment.