The simplest canoes were dugouts, made by hollowing out a log. Other canoes can be made by joining planks together and waterproofing them. They made sails by weaving together coconut or pine leaves. For longer trips, they used large double-hulled canoes. They had large ones that were 30m long and could carry up to 300 people. To travel futher, large canoes could carry less people and more supplies.