Just me and my husband and we are seniors. We had ...

Just me and my husband and we are seniors. We had a great time , not only are the animals great, but the zoo grounds are beautiful. In the children's area they had a lot of teaching displays. Very interesting information. The only problem was a small ledge in the concrete , back in the African area. The ledge was not visible , I do not have good balance. I tripped , but didn't fall completely. That should be addressed. Otherwise great day at the Houston Zoo.