I visited Machalilla National Park in Ecuador a few days ago. The park was only around 20 minutes away from Puerto López by bus.
It was free to enter and was full of birds, insects and 3 beautiful beaches. What you can't see in the video is just how hot it was. It was the first time in a few times I got badly burned. I'm not a huge fan of sitting out in the sun and I always put lots of lotion on.
I swam at each of the three beaches and didn't put lotion on right afterwards, so it must have washed off. Unfortunately, I didn't realise this until it was too late. It reminded me why I don't like sitting in the sun too much.
Anyways, I hope you enjoy the video :)