Gretna offre un ambiente pedonale, in particolare nel centro della città, dove il layout urbano compatto e a bassa scala rende accessibile a piedi. Sono presenti marciapiedi e percorsi pedonali per facilitare gli spostamenti tra le attività commerciali e le attrazioni locali. Tuttavia, la percorribilità complessiva può variare a seconda del quartiere, poiché alcune aree potrebbero trarre vantaggio da infrastrutture pedonali aggiuntive. Anche il clima subtropicale della regione, con estati calde e inverni miti, può influenzare il comfort della camminata, soprattutto durante il picco della calura estiva. Per le brevi distanze e per esplorare il centro storico, camminare può essere un modo pratico e divertente per spostarsi.

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.