Welcome to your new vacation home: Mission Beach Vacation Rentals in San Diego, California. Stay with us and experience the amiable, casual lifestyle of Mission Beach. Along this three-mile isthmus located between Mission Bay and the blue Pacific, you can stroll or bike along the boardwalk as you explore this unique beach community. Besides surfing and swimming in the ocean waves, Mission Bay offers a wide variety of water activities including boat rentals, sailing, windsurfing, jet-skiing, and more.