A nice way to travel from Coron to El Nido or backwards is to do a island hopping tour.
There are lots of providers the most chosen ones are TAO and Buhay Isla.
We did not do this tour but we heard so many great stories so we would recommend you to do this!
We have taken the Montenegro Fastcraft which brings you from Coron to El Nido in about 4 hours. It was comfortable the seats where nice and on a big flatscreen we watched a movie. I recommend to bring lot’s of food and drinks because there is not so much on board.