Sailor Sebastian Engehalt, left, from Hong Kong, Head Engineer Hannes Stauffer, from Switzerland, and producer and filmmaker Gary Bencheghib, from France and Bali, visit Hannibal during their journey down the length of the Mississippi River. The other crew members are engineer Livio Knori, from Switzerland and leader Dan Cullum, from New Zealand. Stauffer said the boat is made almost entirely of recycled materials, from the sail to the 797 plastic bottles lining each side. Bencheghib is collecting stories along the river for a video documentary to show how people are making a difference in the environment and to raise awareness about plastic pollution in waterways as they head to the Gulf of Mexico. The crew’s website is www.recycledmississippi.org.