Large bag to put everything in

Sun cream

Hat with brim all round (not a baseball cap). Mine is a Tilley http://www.tilley.com

Comfortable fold up seat with a back

Small fold up easel or board for your lap.

1 large brush size 14+ and 1 small brush

Plastic palette with colours already squeezed in or metal tray with waterclour pans (leave the colours you don't want at home

Watercolour crayons

Small sketch pad

Small plastic jar for water and large plastic water bottle for refilling

roll of kitchen paper

Watercolour paper already stretched on a board