Grimstad's town center is exceptionally walkable, offering a compact and accessible layout that makes it easy for travelers to reach key amenities like cafes, shops, and restaurants without needing a vehicle. The University of Agder's proximity further enhances convenience for those based there, as it's within a comfortable walking distance. The town's infrastructure favors pedestrians, allowing easy access to recreational spaces, making it a delightful location for walking.

Grimstad is supported by Agder Kollektivtrafikk, which provides regular bus services that connect the town to bustling neighboring cities such as Oslo and Kristiansand. While the coverage is reliable for regional travel, the infrequency and limited coverage within the local area may not match the expectations of those accustomed to the extensive transit networks in larger urban centers. The town's public transport is practical for regional commutes, though it might not be the most efficient for local daily travel needs.

Grimstad embraces its identity as a cycling town, with excellent infrastructure catering to cyclists, including designated paths and trails that extend through the scenic town and beyond. The gentle terrain enhances the cycling experience, making it accessible for all skill levels. Additionally, with the presence of National Cycle Route No. 1 and local bike rentals, travelers find it easy and enjoyable to explore by bike, reflecting the city's commitment to supporting a vibrant cycling culture.