looks like your avatar is at a playground? that's number 1 for me. 2nd is trampoline - either a big one with you supervising or you can get the small low ones they hold onto a bar and jump their hearts out (can be used indoors or out) which you could get a lot of use out of - can make games on there so you are involved (if she also needs you in her activities) - like practicing numbers or letters by doing a jump as you count, or 1 for A, then 1 for B and so on (i am winging this so bear with me). you can set up an obstacle course inside or in garden - put out some old pillows, a tunnel, a hula hoop laying flat, etc and create a course that involves walking, balancing, jumping.
i once saw a great game and i cannot remember if i ever did it, but it is easy and great for her age. you take paper plates and colour the centres different colours (or you can buy a variety of coloured plates if you want - but the colouring can be an activity too). then you spread them out a little bit apart from each other on your floor (guess you coudl blue tac it down if worried about slipping) and you call out a colour and she has to get to it (can do one leap between plates or you coudl say to hop there or twist or dance for variations - again winging it) and then to the next colour you call (you can be seated the whole time and rest!) you work on colour recognition AND physical stuff too. HTH
