5 hours from the Cancun airport on the Costa Maya.
From Cancun, take Hwy 307 south toward Chetumal. Follow for about 185 miles to the small town of Limones. Shortly after Limones turn left at signs to Mahahual and the Costa Maya. Follow for another 54 kilometers to the turn off to Tampalam. Go left and follow the paved road for 9 kilometers to the dirt road turn off to Rio Indio. Turn right and follow the dirt road along the ocean north for 2 miles until you finally get to KaiLuum!