A lively port city and gateway to wild Cat Ba Island, with secluded beaches, jungle treks and kayaking through hidden lagoons in Lan Ha Bay.
Cat Ba Island is Ha Long Bay's quieter, wilder neighbour — the largest of 367 islands in an archipelago inscribed as UNESCO World Heritage alongside Ha Long Bay in 2023. While the cruise boats anchor on the Ha Long side, Cat Ba offers jungle treks through a 17,000-hectare national park, kayaking through the uncrowded lagoons of Lan Ha Bay, and three sheltered beaches just minutes from town.
Stay beachside at Cat Co 2 — the most secluded of the three coves — or venture to Monkey Island Resort on its own private beach. Trek through the national park to the isolated fishing village of Viet Hai, rock-climb over deep water in Lan Ha Bay, and look for the Cat Ba langur — one of the rarest primates on Earth, with around 80 remaining.
The island sits in the Gulf of Tonkin, 120 kilometres from Hanoi — a two-hour drive to Hai Phong followed by a 30-minute ferry crossing. Cat Ba is 285 square kilometres of jungle-covered limestone, and its 2004 UNESCO Biosphere Reserve status protects 1,500 plant species and 362 animal species including the critically endangered Cat Ba langur.
Lan Ha Bay wraps around the island's eastern shore with over 400 limestone islets — the same karst scenery as Ha Long Bay but with cleaner water and far fewer boats. Kayaking here is unrestricted, unlike Ha Long's designated zones. Hospital Cave, a three-storey bomb-proof military hospital carved into limestone between 1963 and 1965, is one of the island's most unusual attractions.
Viet Hai fishing village, 18 kilometres from Cat Ba Town, is reached by a 12-kilometre jungle trek through the national park or a 45-minute boat ride — an isolated community of 70 households surrounded by karst mountains. Rock climbing has grown rapidly: over 120 sport routes and 230 deep-water solo lines make Cat Ba one of Southeast Asia's premier climbing destinations.
April to May and September to October offer the best balance of pleasant weather, calm seas and manageable crowds. June to August is warmest but busiest, with typhoon risk in August. December to February is cool and dry, ideal for trekking.
Drive 120 kilometres from Hanoi to Hai Phong (2 hours via expressway), then take a 30-minute ferry to Cat Ba. Speedboats from Ha Long Bay take 30 minutes. Cat Ba has no airport. We arrange private transfers and ferry bookings for all our honeymoon packages.
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