Photos look odd in Single Tour

Hi!

When I open my Single Tour page I see a huge gap between the first photo and the product gallery for the single tour. This happens to me in my phone (Android) and in my laptop (with Google Chrome, Google Edge, but not with Microsoft Explorer).

This is the link: http://porasia.com/index.php/product/descubre-sea-enero/

I’d like to know if there’s a way to solve this issue. Maybe the problem is generated by the image sizes?

Thank you very much and have a nice day 🙂

Santiago