Las Cabañas Beach is a 15-min drive from El Nido town centre. We hired a car/trike from our accommodation to get there.
This beach itself is beautiful for sunset, with a lively atmosphere. There are shops, bars, and restaurants lining the shore. We'd recommend coming for a sundowner as part of your El Nido itinerary.
There is an EPIC zipline you can do across the water (~700 metres long)! We didn't do it, but the views must be amazing from there.
Note: We checked some reviews on the zipline and some people were concerned about its safety. We can't comment on that, but it's a very popular activity!