If you're looking to relax by the beach during your spring trip to Odaiba, head to Odaiba Beach. This man-made beach offers a sandy shoreline and clear waters, perfect for sunbathing or taking a dip. You can also rent a beach chair and umbrella to make your beach experience even more enjoyable. With the Tokyo skyline as a backdrop, Odaiba Beach is a great spot to unwind and soak up the spring sunshine.