San-Gumburi Crater

This crater was left by one of the many secondary volcanoes on the island (there are 360 of them!) However, it is unusual in that it erupted only gaseous material. It's large size (in both diameter [600-650m] and depth[100m]) has created a unique mixtures of biomes within a small space (is biome the correct term here?) The crater ranges from tropical to subtropical to temperate, depending on the location within the crater. The surrounding area was also very beautiful: families were taking their pictures among the reeds that grew in the fields nearby, and the plane next to the crater was well groomed and marked with traditional Korean grave mounds that seem to spot Korea's landscapes wherever we go.