I began travelling at 16, when I joined the merchant navy, and have been to every continent bar Antarctica and Australasia.
Overall, the most memorable parts of each journey are the new experiences, the characters - both the many friendly and welcoming people and the obligatory rogue - and the culture and history that open your eyes to our varied, but shared world.
My most recent experiences aside from Sri Lanka have been in the Middle East, where people have been remarkably friendly. Jordan in particular was quite magical, as it encapsulated such diversity and friendliness.
I remember Jane being mobbed in Jerash by a group of 20 young women who all wanted a group photo with her, and in the same place, boys and girls in the Roman centre dancing together to music form a big stereo blasting out Jordanian music.
Perhaps the greatest contrast we have seen has been between SE Asia's obvious lack of wildlife and the relatively huge amount still in Sri Lanka - we saw more here in 1 week in 2014, than in 10 weeks in Thailand, Laos and Cambodia the previous year.
This was one of the many factors that led us to work in Sri Lanka when we were asked to set up an education center here in Anuradhapura by the government.