Gretna nudi okruženje pogodno za pješake, posebice u središtu grada, gdje zbog kompaktnog urbanog rasporeda pješačenje postaje pristupačna opcija. Prisutni su pločnici i pješački putevi koji omogućuju jednostavno kretanje između lokalnih tvrtki i atrakcija. Međutim, ukupna prohodnost može varirati ovisno o četvrti jer bi za neka područja mogla imati koristi dodatna pješačka infrastruktura. Suptropska klima u regiji, s vrućim ljetima i blagim zimama, također može utjecati na udobnost hodanja, posebno tijekom najvećih ljetnih vrućina. Za kratke udaljenosti i istraživanje povijesne jezgre hodanje može biti praktičan i ugodan način kretanja.

Biking in Gretna is supported by some infrastructure, including bike lanes and paths, making it possible to navigate parts of the city by bicycle. The relatively compact layout of the area can make biking a practical way to reach local destinations. However, factors such as the availability of bike-friendly routes and the overall connectivity of the infrastructure may vary by location. Riders should also consider the weather, as heat and humidity can impact comfort during longer rides.

Public transportation in Gretna includes bus services operated by the local transit authority, providing connections to nearby areas like New Orleans. Bus stops are conveniently located, making it relatively easy to access key destinations. The infrastructure supports regular routes, such as the W8 Terrytown line, which connects Gretna to surrounding neighborhoods. While buses are a practical option for getting around, the ease of use may depend on the specific route and schedule. The flat terrain of the area generally supports comfortable travel by public transit, though weather conditions could occasionally impact convenience.