By joining WaterAid, you're making big days possible for some of the poorest people around the world: the day children will be able to drink safe, clean water for the first time in their lives. The day parents will harvest their first crops because they have time to work in the fields instead of fetching water. The day students, who used to spend hours carrying water home instead of studying at school, will pass their exams and can look forward to a future full of possibilities.

Thanks to the kindness of incredible people like you, mothers like Mary – who you can see in the film – will never have to give their children dirty water again. It means better health, education and livelihoods. With your support, the day will come where nobody has to drink dirty water anymore.

Please share the joy and celebrate your big day with your friends and family on Facebook and Twitter #mybigday and tell us how your big day makes you feel.