We are headed to Disneyland in February and I'm thinking that we will want to stroll my 4 yr old since she is a huge whiner about walking long distances. While I love babywearing, I don't think I can do it the whole day--my back hurts after just 1-2 hours! So I am thinking we will want to stroll both of them.

Should I get a double stroller? Are there any that work well with an older (but small) child? Or should I just bring my 2 singles (I have a Britax B-Agile and an Uppababy G-luxe umbrella)?

Thanks!