On each continent we are visiting places of historical, cultural or environmental importance. At these places, we will be filming, photographing and interviewing local communities and researchers. This material will be used for articles, short documentaries and radio programmes, which we will produce throughout the expedition. It will also form the backbone of the curriculum projects we develop for participating schools, on subjects such as sea level change, migration, slavery and the history of music.

Our route along the 1m contour line takes us to low-lying communities in 31 countries but it does not  always hug the coastline.  In the Amazon we will weave through dense rainforest 500km from the Atlantic and in parts of Mauritania we cross the Sahara 250km inland. In Guinea Bissau we will encounter uncharted mangrove forests and in Canada we will camp in the snow.  It will be an uncomfortable and exhausting journey, traversing innumerable rivers and spending a lot of time under a mosquito net.