Forget crochet and lawn bowls – these grannies have a much cheekier pastime.

The group of grannies from the Vale of Clwyd, Wales, recently got their gear off – for a good cause.

The 15 women created The 2015 Wrinklies Charity Calendar for £10, and they are already well on their way to hitting their £10,000 charity target.

Helen Mirren in Calendar Girls.

The group has an average age of 71 and a combined age of 1,053 and they are raising the money for various cancer charities.

The photos feature the grannies and strategically-placed props like foliage, knitting and a laptop.

One woman posed on a horse while a group got together for a shot in a hot tub.

One of the models, Jenny Stephens, 72, told The Daily Mail:

[Jenny is our new Life Coach.]

Here is the video of the awesome grannies and their calendar: