Best Cardiff Hotels 92007 â San Diego, California. Visit http://www.innatmoonlightbeach.com to see the most lovely Inn near the Pacific Ocean just a mile up Pacific Coast Highway from Cardiff-By-The-Sea California â the romantic Inn At Moonlight Beach. More intimate than Cardiff Lodge, more romantic than Carlsbad Bed and Breakfasts, this lovely B&B by the sea has only four suites from $139 a night. Compare to any Del Mar B and B or Solana Beach Hotel.