earlier in the day we visited my family in lima, and they gave us the best recommendation we received all week: parque de las reservas. at night they have a giant water show, and the park is filled with numerous other fountains with light and music and interesting structures. it was so much fun! however, i would say that we left wishing that we had worn our swimsuits, as it was so tempting to run and play in all the fountains as well.
if you ever have a free evening in lima, i highly recommend this. it is only 4 soles to enter and is located next to the national stadium. it is so much fun and will bring out the kid in you!