Australian actress Isabel Lucas may currently be climbing Kilimanjaro with a host of her celebrity friends for charity, but just before she left she recorded an advert for the the Sea Shepherd Conservation Society.

“Isabel was out here late last year and appeared on Rove and said she would love to support us,” said the organisation’s Australian director Jeff Hansen. He went on to explain that the ad was actually filmed last winter, but now is the time to act as the organization battles the Japanese whalers in the Southern Ocean.

The Australian advert coincides with Lucas’ climb for charity.

The actress started her attempt to climb Africa’s highest mountain with Jessica Biel, Emile Hirsch and a host of others on Friday. The climb aims to raise money and awareness for the Children’s Safe Drinking Water Program, the United Nations High Commissioner for Refugees and PlayPumps International.

PUR Water Filtration Specialists is sponsoring this initiative, and LookToTheStars.org is proud to help them bring the event to the world. For every PUR system purchase, one week of clean drinking water is provided to children in the developing world through the Children’s Safe Drinking Water Program: which has, to date, provided over 1.8 billion liters of clean water worldwide. You can also sponsor a foot of the climb – $2.00 provides 200 liters of clean drinking water for those in need, and $10 will provide a clean water solution for a child for 1.5 years.

The group plan to reach the summit of the 19,340-foot mountain on January 12.