I have an upcoming family reunion at my cousins house. The problem is, her house is in the country with hills and valleys all around it. Some of the land is flat, but but not much. When Alec was three I could lug him around and up and down the hills. He is now 4 and is 50lbs. I am wondering if I should skip it all together, or stay an hour and leave, or let Alec run with the 20 or more cousins till he drops? I could bring his battery powered jeep and he could tool around in that, however, he does tend to get a little crazy behind the wheel, and there will be close to 70 people there. Any suggestions would be greatly appreciated!