Palenque absolutely is worth the trip. It has one of the most influential (but by far not one of the biggest and most known) Maya sites in Mexico. We stayed at a „hippy backpacker village“ in the middle of the jungle. Just a short hike from the site. We heard and saw the howler monkeys (Brüllaffen) at the site and the village. The flowers were amazing, fish, ants, butterflies in beautiful colours, waterfalls and of course Maya ruins in beautiful scenery.