Rhythm revolution: exploring Iran through its rich musical heritage - Ruairi Glasheen

Co-founder of NGO Motivation, designing and providing wheelchairs in low-income countries, David has photographed across four continents. As a wheelchair user himself, he has a natural affinity with the beneficiaries.

Pedal 4 Parks cycled over land and sea (on waterbikes) from the Orkney Islands to the Isles of Scilly, highlighting potential solutions to regenerate our national parks, green spaces and marine conservation areas at scale.

Writer and journalist Tim Marshall will discuss the influence of geography on history and politics.

Daniel goes in search of the castaway experience in an archipelago of 99 islands. Without support, and increasingly without water, he finds it.