COBA
Coba is beautiful and mysterious - a visit here requires some effort but is very worthwhile. Its name means "ruffled waters", derived from the five lakes in the vicinity, and it is one of the oldest Mayan settlements on the peninsular. It also has the highest pyramid in the area and the greatest concentration of sacbeob (Mayan roads constructed from stone. Singular: sacbe) , both of which suggest a major city - yet the ruins were not discovered until the late 19th century. Even today, only a small fraction of the many structures in this vast site have been excavated and this, together with the remoteness and jungle setting, contribute to the feeling of exploring new ground.
You will need to walk at least 3km to see the biggest pyramid; the main routes are on wide, well signed paths but there are many smaller tracks leading into the jungle which you may wish to investigate. Some are visibly very short but for others a guide (there are usually several around the gate) is advisable.
Allow at least half a day to see the main structures and try to avoid the heat of the day. There are no crowds here, as Coba is not on the tour bus routes, and any other travelers you meet will be of the serious kind rather than the bikini-clad tourists at Tulum. Opening times are the usual 8.00am to 5.00pm. Toilet facilities by the entrance are basic but clean, a small fee is charged for their use.
Another interesting feature of Coba is the convergence of around forty sacbeob, built by the Maya, one of which has been traced a distance of 60 miles (100 km). Each sacbe was constructed with stones to a height of one to two meters and then covered with white mortar. Their purpose is puzzling as this civilization had no wheeled transport and had yet to see the horse, but may have been built for religious processions and pilgrimages




