I first visited in 1974 or 5 and several times more over the next 5 years, i remember the cable car ride& lake, but think the hippos had been moved to the paddock in the drive through area by then.
The Woburn of today has little resemblence to the one i remember from childhood, where was the lake & cable car route in relation to todays site?
I agree the return of hippo would be welcome, but from memory they would need new housing, those old shacks are very dated & in need of demolition. If they were building a new house, personally i'd rather it were in the walk around area, i'm not a fan of 'drive-by' exhibits.