Logo and Flyer for New Forest School - Design and Layout Needed

I am starting a Forest School to provide kids activities in the woods.

Here is my Facebook page for the venture.https://www.facebook.com/Oakwood-Forest-School-469366120120733/

I need a logo and flyer designing which I will then get printed. Something bold and simple would suit. It's aimed at parents of small kids. 5 to 11 years of age.

I need the output as a PDF but also I will need to have the flyer adjusted in the future so I will need the original files. I am not going to be editing this myself but if you are designing in illustrator or PS then I will need the original files for the future. I will want to use the logo on FB - so I may also need FB sized output to upload.