Further up the road stop at the nu'uanu pali lookout for breathtaking views and vistas of the windward coast and the rugged cliffs of the ko'olau mountain range. From the pali highway, venture to kane'ohe bay to visit the he'eia fishpond, which was used by ancient hawaiians to store fish for food and to allow fish to reproduce. 10 secret things to do in oahu. The beautiful island of oahu has many hidden gems just waiting to be discovered, enabling adventurers to find their own slice of paradise. From secluded beaches and breathtaking hiking trails, to secret waterfalls and. This guide invites you on a journey to discover oahu’s hidden gems, the secret spots that offer an escape into the island’s rich tapestry of natural wonders, cultural richness, and peaceful escapes. From secluded beaches where the sands whisper tales of old hawaii to lush trails that lead to breathtaking vistas. As a disclaimer, some of these places used to be secret spots on oahu and have grown in popularity over the past few years. The views from each location are simply breathtaking and will leave you speechless when you arrive at each of the hidden spots in oahu. These secret places to visit on oahu aren’t just great for adults but also perfect for kids as well! 14 secret spots in oahu: China walls | 2. Mermaid caves | 3. Ho’omaluhia botanical garden | 4. Waimanalo bay park | 5. 11 secret spots and hidden gems in oahu. From secret caves to hidden lookout points, you’ll uncover a whole new side of oahu that you won’t find in the guidebooks. Oahu, hawaii's vibrant and culturally rich island, is a treasure trove of scenic wonders. From dramatic coastlines and lush mountain ranges to picturesque valleys and cascading waterfalls, oahu offers an abundance of breathtaking landscapes that are bound to leave you in awe. Dive into a hidden chapter of hawaii’s story as you uncover the mermaid caves of oahu, a secret sanctuary beneath the waves. These captivating underwater grottos are one of the island’s hidden wonders, offering a unique and.