Grenville offers a moderately walkable environment, especially convenient for travelers staying in central areas. The town itself is compact with amenities like supermarkets, shops, and marketplaces easily accessible on foot. While it's possible to manage daily errands without a car, exploring beyond the town center, including beaches or more distant attractions, requires transportation.

Public transport in Grenville is reasonably accessible and organized, primarily due to the newly opened bus terminal. The minibus network connects Grenville to other parts of the island, including St. George's, offering a reliable and affordable means of travel during normal operating hours. While not ideal for all-day exploration, it suits travelers well for regional connectivity.

Despite some biking routes, Grenville presents challenges for cyclists due to hilly terrain and the likely absence of dedicated bike lanes. Traffic can add to the difficulty, making biking better suited for recreation rather than functional daily commuting. Travelers may find bicycling feasible but not particularly convenient for regular transport.