A big storm with lightning strikes can cause thousands of Canadian forest fires in a dry, windy summer, Devin Palmer says.
Mr Palmer is a wildland firefighter, working for six to eight months in summer and looking for adventure for the rest of the year.
At the moment he's cycling the length of New Zealand and started from Cape Reinga last month. He was in Wanganui at the weekend, hosted by Ann and John Handley.
They are part of the warmshowers network, which matches touring cyclists with hosts who offer a shower and either a bed or a place to camp. The Handleys have hosted four cyclists in the year since they joined, and said they met some great people.
They were intrigued by their visitor's lifestyle. Mr Palmer has been a wildland firefighter for six years. He got two months' training to rappel - slide down a rope from a helicopter - and set up on the ground to fight fires.