One Mile Beach is patrolled by lifeguards during peak seasons and school holidays, making it safer for swimmers when flags are present. The beach is known for good surf conditions, which means waves can be strong and rips may occur. Always swim between the red and yellow flags where lifeguards are monitoring conditions. Check the surf lifesaving flag system before entering the water, and less experienced swimmers should stay in shallower areas. During unpatrolled times, exercise extra caution and consider swimming at nearby patrolled beaches instead.

One Mile Beach is excellent year-round, with each season offering different appeals. Summer (December-February) brings warm water temperatures around 22-24°C and full lifeguard patrols, ideal for swimming and families. Autumn and spring offer pleasant weather with fewer crowds and consistent surf. Winter (June-August) sees cooler temperatures but attracts surfers seeking bigger swells. The beach faces east, providing beautiful sunrise views any time of year. For the best combination of weather, surf conditions, and manageable crowds, consider visiting during shoulder seasons of March-May or September-November.

One Mile Beach has several parking areas accessible from Scenic Drive, which runs parallel to the beach. The main car park is located near the surf club in the centre of the beach, with additional parking areas at both the northern and southern ends. Parking is generally free but can fill quickly during summer holidays and weekends. The beach is approximately 3 kilometres from Forster town centre, easily reached by car in under 10 minutes. Limited public transport options exist, so driving or cycling are the most practical access methods for most visitors.

One Mile Beach offers limited on-site facilities, with the surf club being the primary beachfront venue. However, nearby Forster town centre (3km away) provides extensive dining options, supermarkets, and cafes. Several holiday parks, motels, and rental properties are located within walking or short driving distance of the beach, particularly along Scenic Drive. For immediate needs, basic amenities including toilets, showers, and picnic areas are available at the beach. Many visitors stay in Forster proper and make the short trip to One Mile Beach for surfing, swimming, and beach activities throughout their stay.

Despite its name, One Mile Beach actually stretches for approximately 1.6 kilometres (about one statute mile), though some measurements suggest it's slightly longer. The name originated from early colonial times, likely referring to an approximate distance measurement rather than a precise calculation. This naming convention was common in Australia, where distances were estimated rather than scientifically measured. The beach has retained this historic name even though modern measurements might differ slightly. Regardless of its exact length, One Mile Beach remains one of Forster's most popular and scenic coastal destinations for both locals and visitors.