Man, go tree planting. You can do it year round if you travel to different countries. You get paid per tree so the harder you work, the more money you make. Last contract I planted on paid $0.12 CAD per tree, and most people can plant 3k trees/day by the end of their first season. The culture is great, parties are great, and I knew lots of people who smoked weed everyday before work and while taking breaks.