Military Heritage Centre and Great Siege Tunnels is 0.4 mi (0.7 km) from central Gibraltar, why not stop by during your stay. Hotels.com travelers also say the area is full of friendly people and has lots of nice beaches. It's also full of great shops and restaurants, so you can spend the afternoon having a wander. If you want to experience more of the culture Gibraltar has to offer, head to Rock of Gibraltar, Casemates Square, and Moorish Castle.