Hourly childcare in a Kid's corner in Sliema or Marsaskala

Hello,
I am looking for a place in Sliema or Marsaskala (Kid's corner, children center, kinder garden or etc.)  where I can leave my children (3 and 6 years old) for two hours occasionally (once or twice per week). So far I found only children gardens or summer schools where you must sign either for 3 times a week or for five...which I don't really want. Please advice if anybody knows something. Thank you in advance.
Pavlina

There's a private child care "Treasures" in M'scala next to Palm Valley restaurant.
ahh, found the website: http://www.littletreasure.eu/

Thank you, but I check already there and they don't provide occasional visits, it is working as a kinder garden... :(