Marley Beach is generally calmer than ocean-facing beaches due to its protected Port Hacking location, making it suitable for swimming in settled conditions. However, it's an unpatrolled beach with no lifeguards, so swim at your own risk and stay cautious. Check weather and tide conditions before entering the water. The beach can experience strong currents during tidal changes. Supervise children closely and avoid swimming alone. Rocky areas at either end of the beach require care when entering the water.

Marley Beach can be enjoyed year-round thanks to its sheltered position on Port Hacking. Summer (December-February) offers warm swimming conditions and long daylight hours, though weekends can be busier. Autumn and spring provide pleasant temperatures with fewer crowds, ideal for walking and picnicking. Winter is quieter still, perfect for scenic coastal walks. Early morning visits reward you with calmer conditions and potential wildlife sightings. Weekdays generally offer more solitude than weekends regardless of season.

Access Marley Beach via a 20-30 minute bushwalk from Bundeena village. Park at Bundeena's public car parks near the ferry wharf or along Brighton Street. From there, follow Beachcomber Avenue to the Royal National Park walking track that leads to Marley Beach. The track is moderately easy but includes some stairs and uneven terrain. Alternatively, reach Bundeena by ferry from Cronulla. Carry everything you need as there are no facilities at the beach itself.

Marley Beach has no facilities, so bring all food, water, and supplies. The nearest amenities are in Bundeena village, about 20-30 minutes' walk away, where you'll find a café, general store, and pub. Pack out all rubbish as there are no bins. For accommodation, Bundeena offers limited holiday rentals and a caravan park. Most visitors base themselves in Cronulla across the water, which has extensive dining, shopping, and lodging options, then day-trip via ferry.

Marley Beach requires a 20-30 minute bushwalk to reach, which naturally filters out casual beachgoers who prefer the accessible beaches near Bundeena wharf like Horderns Beach or Jibbon Beach. Its location within Royal National Park means fewer people know about it compared to well-signposted beaches. The lack of facilities and unpatrolled status also makes it less appealing to families with young children. This relative obscurity rewards those willing to walk with a peaceful, scenic beach experience.