Travel industry leaders attended a reception to celebrate the work of water aid charity Just a Drop at 10 Downing Street on Tuesday night.

Guests including charity founder and former WTM chairman Fiona Jeffery were hosted by Samantha Cameron, wife of prime minister David Cameron, at the private reception.

Other guests hosted in Number 10’s Terracotta Room included charity supporters from the travel industry and global business leaders, as well as journalist and newscaster Alastair Stewart and round-the-world yachtswoman Tracy Edwards.

Jeffery said: “This was a very exciting day for Just a Drop. We’ve come a long way since 18 years ago when I first discovered that just £1 could supply a child with water for 10 years.

“In that time we have managed to help people all over the world gain access to clean water and now we are at Number 10.

“I cannot convey how grateful I am to Samantha for opening up her home to us so that we may celebrate all the wonderful work that we do.”

Just a Drop’s mission is to reduce child mortality by delivering accessible, clean, safe water where it is needed most. To date, it has completed more than 170 projects across 31 countries, helping more than 1.3 million people.

Projects support communities through the construction of wells, boreholes, pipelines, hand pumps and latrines and establish health and sanitation programmes for some of the poorest and remotest regions in the world across Africa, Asia and Latin America, including Kenya, India, Uganda and Cambodia.