Inspired by his recent school topic on deforestation, Henry is taking part in this fundraising event for the charity Money for Madagascar.

MfM's forest and livelihood projects enable some of the poorest people on earth to sustainably support their families, whilst protecting and restoring Madagascar's unique forests.

The cross-bay walk is around eight to ten miles and can be pretty arduous wading through rivers, tough under foot and dealing with sun, wind or rain driving across the bay.