walk on the path
You must walk on the path
wash your hands
You must wash your hands
drop litter
You mustn't drop litter
fish
You mustn't fish
climb the trees
You mustn't climb the trees
pick the flowers
You mustn't pick the flowers
talk
You mustn't talk
swim
You mustn't swim
turn on your mobile phone
You must turn on your phone
surf
You mustn't surf
take photos
You mustn't take photos
put the litter in the bin
You must put the litter in the bin
dive
You mustn't dive
walk on the grass
You mustn't walk on the grass