If you like exercising on a bike (I mean a real one, not a torture device you may have in an apartment or find in the health (?) clubs of hotels), why not go to Lake Pontchartrain, just to see how it looks like?
First impression: it is huge and you do not see horizon (picture 1)!
When you go there, you pass by nice suburbs (picture 3), have the luck to see some historical remains, like Fort St Jean (picture 2) a fort built to protect New Orleans from attacks possibly launched from the lake.
On the shores, you can enjoy the quiet scenery, the trees and flowers (picture 4) of Lakeshore Park, have a picnic or a drink and watch the locals enjoying “watersports” (picture 5). Enjoy your biking tour!
The city is shaped like a bowl with high ground surrounding it, so when water overflows the levees or enters by way of a waterway, then the city center suffers. Along the lake this was pretty evident as the levee remained intact but both sides of the levee got flooded. The City Park area was a good example of this and clean up is in progress. The damage here though wasn't really an impediment to the tourist, as the landscaping generally survived handily. I'm not sure the concrete edge steps to the lake was such a good idea. It might be better to eliminate this as any strong storm surge will certainly break up the concrete and turn it into a tool for carving out the levee again in the future. Flooding from this lake is something of a natural hazard likely to occur again in the future.
Lake Pontchartrain that is, which is now clean enough to have water activities! Gone are the days of Pontchartrain Beach, but the boaters are always out, and the lakefront always attracts families, birthday parties and readers to the lakefront to enjoy the fresh air and lakeshore drives.