Xlapak is after Sayil on the Puuc Route in the Puuc Hills. Xlapak means "Old Walls" which is what the locals, who knew nothing about the site, called it.
The palace at Xlapak is smaller than those at Kabah and Sayil. As expcted it is covered with masks of Chaac, Columns and lattice work - Puuc style.
As before at Kabah and Sayil, we were the only people at Xlapak and back in 1999 there were no facilities here at all so, again, I recommend you have penty of liquids with you.
The next stop on the Puuc Route, after Xlapak, is Labna.
Sayil is best known for EL PALACIO which is a massive 2-tiered beuilding, has a facade of 85m in length and looks rather Greek. The columns used are distinctive to Puuc archetecture and can be seen at other sites in the Puuc area.
The path from the palace leads to EL MIRADOR which has any interesting roof on it but is otherwise not very interesting.
... and on to Xlapak...
Sayil is known for its enormous palace (El Palicio). You wonder what in the world is this huge three story building doing here all by itself surrounded in jungle and seemingly nothing else. Although you cannot climb up and explore the inside of El Palicio, you can marvel at its intricate and decorative façade. It is built in the Puuc style with chac masks on all of the cornices and rows of columns that support the intricately carved lintels. The palace apparently provided housing for 300 royal occupants. There are ruins of temple, El Mirador, about 400 m south of El Palicio but it is badly weathered. You need only 20 to 30 minutes to see this site.
The cost is about $2 US. Free on Sundays
From the Merida's Terminal de Segunda Clase, you can buy your round trip ticket that goes to Sayil as well as many other Ruta Puuc sites like Xlapack, Labna, Kabah and Uxmal. Buy a day in advance.
The bus will first go to Uxmal and drop off those going there directly. Stay on and go to the smaller sites. It will come back to Uxmal and pick you up again a few hours later.
You only have to pay the cost of the bus ticket. If you are in Merida on a Sunday I highly recommend taking advantage of this.