My 92 yr old Nan lives very close to the London Wetland Centre but has never been. Usually we take her on trips to Hampton Court, Richmond Park etc but thought we might brave the wetland centre next weekend. My Nan will need a wheelchair and is virtually blind and deaf. I will also have my 19 month DD in tow. Luckily DH will also be with me, I can't manage them both on my own! Will it amuse the 2 of them??? Or should we stick with picnics in Richmond Park.