Ferry to Cozumel

Can someone confirm the price of the ferry from Playa del Carmen to Cozumel? I've done some research and am finding conflicting information.

 

According to the Ultramar website (the company that provides ferry service), the rate is $27.17 round trip adults, $15.91 round trip kids 4-11, plus taxes.

http://www.granpuerto.com.mx/

 

It's cheaper to pay in pesos -- roundtrip for adult is 280 pesos as of yesterday (picked up the brochure on the way to the beach.) Which, today, is $20.60.

For children it's 160 pesos roundtrip, or again as of today, $11.70.

Edit: Looks like you can't pay in pesos online, but there are ticket stands just outside the ferry dock where you can buy the tickets in pesos.

 

i was wondering how far the dock to the ferry was from TTR? can u go by the bus?

 

oops i was thinking about the ferry to isla mujures....sorry