Music – bring a couple of copies of the words to your songs and have a sing along. You can get lyrics for most songs from the internet.
Movies – these are great for putting the little ones to bed or for a rainy day, provided you have a laptop.
Board game – Pictionary is our favorite
Ladder golf – This game is quite simple to make, we have had ours for over 10 years.
Inflatable toys/ mattresses
Baseball gloves and ball
This list could go on forever, you will need to utilize your space the best you can.