Camp Pendleton Marines, families and sailors enjoy a spectacular fireworks display at Camp Pendleton's Del Mar Beach during the 4th of July Beach Bash. The Beach Bash has been around 28 years, giving Marines, families and sailors a chance to enjoy their nation's birthday and the freedoms they support and protect. - Camp Pendleton Marines, families and sailors enjoy a spectacular fireworks display at Camp Pendleton's Del Mar Beach during the 4th of July Beach Bash. The Beach Bash has been around 28 years, giving Marines, families and sailors a chance to enjoy their nation's birthday and the freedoms they support and protect.