outdoor dimmers?

[brs73]

hello there
i need to install a (three gang) dimmer at a botanical centre. outdoor but under cover.
been searching for weatrherproof dimmers without any luck!!
any help out there would be greatly appreciated,
its going to be in a childrens learning centre so there will be a good chance of wet/muddy/tiny hands in contact with these switches.
any links would be greatly appreciated

thanks in advance people

 

[Submains]

Think this might fit the bill
IP65 WEATHERPROOF ACCESSORY DOUBLE BOX - TAKES ANY TWIN SOCKET OR RCD SOCKET
IP65 rated and lockable for the tiny hands.
Hope this helps.
Colin.