According to forum posts, Waikiki is a popular area for accommodations due to its extensive options and tourist-friendly amenities. Travelers have called out the convenience of being close to beaches, restaurants, and shops.

For those seeking quieter locations away from the hustle of Waikiki, some travelers recommended Ko Olina and the North Shore's Turtle Bay Resort. These areas are appreciated for their more relaxed atmosphere and scenic beauty.

Forum users advised that while beachfront properties in Waikiki can be expensive, places like Park Shore Waikiki offer reasonable rates and good ocean views. They also suggested considering condos or resorts like the Imperial Waikiki and Waikiki Shore for a more homely stay.

According to forum posts, Foster Botanical Garden is highly recommended by many travelers due to its downtown Honolulu location and historical significance. It's praised for its accessibility and the presence of a Kuan Yin temple, making it a unique cultural and botanical experience.

Travelers have also suggested visiting Lyon Arboretum for a more immersive experience into Hawaii's native flora, located in the lush Manoa Valley. This garden offers a more extensive exploration with hiking trails, making it ideal for those looking to combine physical activity with botanical admiration.

For those interested in diverse plant collections, Hoomaluhia Botanical Gardens is noted for its scenic drives and walking paths, though it is described more as a large park than a traditional garden. Koko Crater Botanical Garden is favored for its impressive cactus garden and dry climate plant species, providing a contrast to the more lush environments found in other local gardens.

According to forum posts, many travelers enjoy the Waikiki Beach area for its vibrant beachfront activities. Popular spots include the Barefoot Bar at Dukes and Mai Tai Bar at Royal Hawaiian, which offer live music and a classic vibe.

Travelers have called out Iolani Palace as a must-visit for its historical significance as the only royal palace in the US. Other notable mentions are the Bishop Museum for its rich Hawaiian history and the Honolulu Museum of Art for cultural explorations.

For leisure and shopping, forum users frequently recommend the Royal Hawaiian Center, which offers a variety of shops, restaurants, and free cultural performances, including hula shows and lei making classes. The center’s central location in Waikiki makes it an accessible spot for most tourists.

Some travelers suggested exploring the nightlife at places like Rumfire, which is known for its great location and live music, providing a relaxing atmosphere for enjoying drinks and food by the beach.

According to forum posts, travelers have recommended local and authentic dining experiences in Oahu. Some popular places include Helena’s Hawaiian Food and Haili’s Hawaiian Foods for traditional Hawaiian dishes. For plate lunches, Rainbow Drive-In is frequently mentioned.

Many users have highlighted the variety of seafood and Asian cuisine available. Marukame Udon and Ono Seafood are praised for their fresh and authentic offerings. For a unique dining experience, travelers suggest checking out the shrimp trucks on the North Shore, although opinions on their value vary.

Travelers have called out specific restaurants for special occasions or unique dining experiences. House Without a Key and Orchids at Halekulani are noted for their great views and ambiance. For those seeking high-end dining, La Mer and Michel’s at the Colony Surf are recommended for their exquisite settings and gourmet menus.

For desserts, Leonard’s Bakery is a must-visit for its famous malasadas, a local sweet treat. Another recommended spot is Liliha Bakery, known for its coco puffs.

Despite mixed reviews about their value, food trucks remain popular among visitors. For casual and budget-friendly options, the food courts in Ala Moana and the International Marketplace offer a variety of choices that cater to different tastes and preferences.

According to forum posts, the Waikiki Marine Life Conservation District is recommended for snorkeling, especially during the winter months when the surf is rough on the north shore. This area starts at Queens Beach and is praised for its accessibility.

Some travelers have suggested Kuilima Cove on the north shore at the Turtle Bay Resort and the lagoons in Ko Olina for snorkeling. These spots are noted for being good alternatives when the surf conditions on the north shore are favorable.

For summer months, forum contributors recommend the Pupukea/Waimea Marine Life Conservation District, which includes Sharks Cove and Three Tables on the north shore. Also, Electric Beach on the west side is suggested, but it is noted for experienced snorkelers only due to stronger currents and waves.

For those interested in boat tours that are considerate of marine life, Hawaii Nautical is highly recommended. They are recognized for being a Dolphin Smart company, indicating a commitment to responsible wildlife interactions.

According to forum posts, popular family-friendly activities in Oahu include visiting the Honolulu Zoo, the Waikiki Aquarium, and the Bishop Museum. These attractions offer educational and engaging experiences for children of all ages.

Some travelers have suggested outdoor activities such as hiking the Aiea Loop Trail, exploring Waimea Valley, and enjoying the calm waters at KoOlina Lagoon #4. These locations provide opportunities for families to experience the natural beauty of Oahu while accommodating children.

For cultural experiences, travelers have called out the Polynesian Cultural Center as a suitable place for families. It offers a glimpse into the diverse cultures of the Pacific, and many visitors appreciate the educational and entertaining performances.

According to posts, family-friendly beaches include Lanikai Beach and the beaches at Ala Moana Beach Park, which are known for their gentle waters and scenic views, making them ideal for families with young children.

According to forum posts, Paradise Cove and Chiefs Luau are recommended as family-friendly luaus in Oahu, especially for those staying in the Ko Olina area. These luaus cater well to families, offering a mix of entertainment and cultural displays suitable for all ages.

For many users, attending a luau is a quintessential Hawaiian experience, but some travelers suggested alternative entertainment. Free shows featuring Hawaiian music and dance are available at places like the Royal Hawaiian Center, which can be an appealing option for families looking to enjoy local culture without the expense of a traditional luau.

According to forum posts, the Bus is a widely recommended public transportation option for getting around Oahu, especially within Honolulu and Waikiki. It costs $2.75 per ride or $5.50 for a day pass. Travelers have noted its convenience for reaching major attractions like Diamond Head and Hanauma Bay.

Some travelers mentioned shuttle services as an affordable transportation method, particularly for airport transfers to Waikiki, with prices under $25. These shuttles are often more budget-friendly compared to taxis and provide a practical option for reaching hotels from the airport.

The Waikiki Trolley Pink Line, highlighted by users, operates around Waikiki to Ala Moana Shopping Centre. This service is particularly useful for tourists staying in Waikiki and looking to explore the local shopping areas without renting a car.

For exploring areas outside of Honolulu and Waikiki, some forum contributors recommended renting a car for part of the stay. This provides flexibility for visiting less accessible parts of the island, such as the North Shore. However, for central areas, the Bus and local shuttles are sufficient for most travelers' needs.