Unfortunately, as an AI language model, I do not have access to real-time information and updates that are required for providing an accurate summary of a specific campground area. Moreover, the Decker Canyon City Camp (Closed) camping area doesn't exist anymore and has been closed. Therefore, it is important to consider that the information available online may not be current or accurate. However, I can provide general information about the surrounding area, nearby points of interest, and the best time of year to visit Malibu, California.

Malibu is a beautiful beach city located in Los Angeles County, California. It is known for its stunning beaches, scenic views, and celebrity homes. The city is also home to several parks and nature reserves, including the Santa Monica Mountains National Recreation Area. The Decker Canyon City Camp was one of the campgrounds that used to be operated by the National Park Service in the Santa Monica Mountains National Recreation Area.

Surrounding Views:

The Santa Monica Mountains National Recreation Area offers breathtaking views of the Pacific Ocean, Malibu and Topanga State Parks, and the urban areas of Los Angeles. The area is also home to a diverse range of wildlife, including bobcats, mountain lions, coyotes, and many bird species.

Specific Nearby Points of Interest:

1. Malibu beaches: Malibu is known for its beautiful beaches, including Zuma Beach, Malibu Lagoon State Beach, and Surfrider Beach.

2. Getty Villa: The Getty Villa is an art museum that showcases ancient Greek, Roman, and Etruscan artifacts. It is located in the Pacific Palisades area of Malibu.

3. Adamson House: The Adamson House is a historic home that is now a museum. It features beautiful tile work and is located on the beach in Malibu.

Campground Amenities:

As the Decker Canyon City Campground is closed, it is no longer possible to access its amenities. While it was open, the campground provided a rustic camping experience with picnic tables, fire rings, and vault toilets.

Interesting Facts:

1. The Santa Monica Mountains National Recreation Area is one of the largest urban parks in the world, covering over 150,000 acres.

2. The area is home to several endangered and threatened species, including the California red-legged frog and the San Fernando Valley spineflower.

Best Time of Year to Visit:

The best time to visit Malibu is during the spring and fall months when the weather is mild and the crowds are thinner. The average temperature during the spring months (March to May) is between 60°F and 70°F, while during the fall months (September to November), the average temperature is between 65°F and 75°F. However, it is important to note that the weather can be unpredictable, and visitors should always check the weather forecast before traveling.