Islands worldwide offer exciting adventures like zip lining over rainforests and surfing big waves. You can also try bungee jumping, skydiving, and white-water rafting. Other activities include canyoning, waterfall rappelling, glacier hiking, and ice climbing.Snorkeling with manta rays, trekking active volcanoes, cliff jumping, and caving are also popular. Deep sea fishing and kiteboarding are great for those seeking thrills.