Mother's Beach in Marina del Rey, California, is a beach-entry launch site located at the end of D Basin within the harbor. The primary access point is directly from the sand, adjacent to the Jamaica Bay Inn parking lot at 14110 Palawan Way. This launch is characterized by its simplicity, with no docks or rocky shoreline, allowing paddlers to carry their craft a short distance from their vehicle to the water. The beach itself is a small, crescent-shaped area lined with palm trees. The paddling environment is defined by its exceptionally calm, flat water, as the beach sits inside a protected harbor basin sheltered from open-ocean swell and main channel traffic. There is no shore break or waves to navigate, making it a beginner-friendly zone ideal for first-time paddlers, families, and those seeking a stable, rhythmic paddling experience free from surf conditions. The overall vibe is relaxed and community-oriented, with a local feel distinct from busier nearby beaches like Venice.

The harbor's protected nature means wind exposure is minimal within the immediate launch area, though conditions can vary in the larger marina. Tides have a negligible effect on the launch due to the gentle beach slope. From this launch, paddlers can explore the tranquil waters of D Basin and the wider Marina del Rey harbor, which offers views of the Pacific Ocean and the Los Angeles skyline. The harbor is the largest man-made marina in the United States, providing extensive flat-water routes. A notable regulation is that paddleboards rented from local operators are for use within the Marina del Rey harbor only and are not permitted in the open ocean. Amenities include nearby paid parking, and the beach area is adjacent to a children's swim zone.