You will paddle down calm rivers, with the option to go into the ocean if your skill level and or the conditions allow. (hawaii-travelguide.com)
Navigate narrow canyons and steep drops, float down serene stretches of calm river, and test your paddling skills on Class II and III rapids. (bali-indonesia.com)
Half a million years ago, on the banks of a calm river in central Java, they scored a deep zigzag into a clam shell. (newscientist.com)