Motunau Beach is generally suitable for family visits, though swimming conditions vary with weather and tides. The beach is unpatrolled, so swimmers must be cautious and assess conditions carefully. The river mouth can create currents and changeable conditions. Calmer days offer reasonable swimming opportunities, particularly for confident swimmers. The sandy beach is good for children to play on, but adult supervision is essential near the water. Check surf and weather forecasts before visiting, avoid swimming near the river mouth, and always swim with others. The beach is more suited to paddling and beach play than serious swimming.

Summer (December to February) offers the warmest weather and best conditions for beach activities, sunbathing, and picnics at Motunau Beach. The shoulder seasons of late spring (November) and early autumn (March) provide pleasant weather with fewer visitors. Winter can be quite cold and windswept, though beautiful for coastal walks. Weekdays are quieter than weekends year-round. Early morning or late afternoon visits offer lovely light for photography and a peaceful atmosphere. The beach is relatively uncrowded compared to more popular Canterbury beaches, making it appealing for those seeking tranquility.

Motunau Beach is located approximately 80 kilometers north of Christchurch, about a 1-1.5 hour drive via State Highway 1. Turn off at the Motunau Beach Road (near Greta Valley) and follow signs to the coast. The road leads directly to the small settlement and beach. Parking is available near the beach access points, though spaces are limited in the small settlement. There is no public transport to Motunau, so a private vehicle is necessary. The roads are sealed and suitable for regular cars in all weather conditions.

Motunau Beach is a small coastal settlement with very limited commercial facilities. There are holiday homes and baches available for rental, but few permanent amenities. Visitors should bring their own food, drinks, and supplies as there are no cafes or restaurants directly at the beach. The nearest towns with shops and services are Cheviot (about 25 minutes away) and Amberley (about 30 minutes south). For a full range of accommodation and dining options, consider staying in larger nearby towns or Christchurch and visiting Motunau as a day trip.

Motunau Beach offers excellent opportunities for beachcombing, coastal walks, and exploring the rugged northern Canterbury coastline. The beach and surrounding area are good for photography, particularly the dramatic coastal landscapes and river mouth. Fishing is popular both from the beach and at the river mouth when conditions permit. The sandy beach is ideal for sunbathing, picnicking, and beach games. Surfing can be possible on appropriate days, though conditions vary. The area's relative isolation makes it perfect for peaceful nature appreciation and escaping busier tourist spots along the Canterbury coast.