Tube18 — Cylindrical rooms on the Pacific, the stay everyone on Green Island talks about
Tube18 is a beachfront B&B that is "unlike anything else" on Green Island — built around its signature tube-shaped cylindrical rooms, direct ocean views, and an owner named David whom guests describe as handling absolutely everything, from organising dive trips to coordinating ferry tickets. A score of 9.1 from 391 reviews on Booking.com and 9.5 from 33 reviews on Trip.com makes it the most cross-platform validated B&B on the island.
The name TUBE18 comes directly from the cylindrical pod rooms that define the property — imagine sleeping inside a rounded capsule, opening your door onto a ribbon of Pacific blue, warm island air replacing every instinct to reach for your phone. The tube rooms are snug by design (think: compact capsule, not cramped cave), each with air conditioning, free Wi-Fi and a private bathroom. They sleep two perfectly. The Suite category offers more floor space for couples who want to spread out, and is the better pick if you're travelling with large bags.
Guests describe: "The tube room is tiny but the moment they opened the door they were staring at the ocean. David sorted the scooter, the dive trip, the ferry — they didn't need to think about anything. Best choice on the island, full stop."
What elevates Tube18 far above its price point is owner David, whose name appears in review after review as a genuine differentiator. David is not simply a check-in host — he functions as a full island concierge: booking snorkelling and diving trips with reputable local operators, coordinating the ferry from Fugang Harbour in Taitung, steering guests toward the seafood restaurants that locals actually eat at, and pointing out stargazing spots that never make it into guidebooks. His English is sufficient for clear communication, and he clearly understands what international travellers need from a remote island stay.
Green Island (綠島) sits in the Pacific Ocean about 33 kilometres off Taitung's east coast and is consistently ranked among Taiwan's best diving destinations — clear water, healthy coral, sea turtles in the shallows and dolphins visible from shore. Getting there involves either the 50-minute ferry from Fugang Harbour or a 15-minute Uni Air propeller flight. Tube18 is positioned at the southern end of the Nanliao Harbour area, roughly a five-minute scooter ride from the pier — David arranges scooter rental, which is essential since public transport on the island is essentially non-existent.
The outdoor pool is the natural gathering point on any morning, ringed by sun-loungers with nothing between you and the ocean horizon. It's the kind of resort-lite atmosphere that rarely exists at this price tier. Free Wi-Fi reaches the poolside and room terraces. Complimentary harbour transfers — arrange in advance — mean arrivals and departures are stress-free, no haggling for taxis on a tiny island. For first-time visitors, David will sketch out an efficient two- or three-day itinerary covering the island's best beaches, hot spring, lighthouse and dive spots.
Across 391 Booking.com reviews (score 9.1) and 33 Trip.com reviews (score 9.5), three themes repeat without fail: the tube rooms deliver exactly the Instagram magic they promise, David's service is genuinely exceptional, and the overall value far exceeds expectations. Critical reviews are rare; the recurring notes concern the intentionally compact tube dimensions — which is not a flaw for guests who understand the capsule concept — and reduced services during the low season from October to March.
Green Island logistics require some advance planning: most restaurants, dive operators and activity providers reduce hours or close during October–March, when visitor numbers drop sharply. The prime window is May–September, when water temperatures are warmest, diving visibility is best, and all services operate at full capacity. Ferry seats on summer weekends sell out quickly — book as far ahead as possible.
Practical travel notes: ferries from Fugang Harbour depart at approximately 07:30 and 13:00, taking 50 minutes at NT$500 per person one way. Buy tickets in advance online through Green Island Line (or ask David). On the island, scooter hire (NT$400–600/day) is the standard mode of transport — a valid Taiwanese driver's licence, a Thai licence, or an International Driving Permit is required. Tube18 accepts cash only, so withdraw enough NT$ at a 7-Eleven ATM in Taitung before boarding the ferry, factoring in scooter hire, diving fees and meals.
In short, Tube18 is the clearest recommendation on Green Island for travellers who want a genuinely unforgettable stay without the stress of navigating a remote island on their own. The tube rooms create a memory that answers "where on earth is that?" every time someone sees the photos. David turns a logistically complex trip into something effortless. And at from approx. NT$1,600 per night, there is no serious debate about value.
Summary from Booking & Agoda
- ✓ Tube rooms are genuinely unique — great photos and surprisingly comfortable
- ✓ Owner David is exceptionally helpful, sorts everything on the island
- ✓ Outdoor pool and sea-view atmosphere well above the price point
- ✓ Complimentary harbour transfers make arrival and departure seamless
- ! Tube rooms are compact by design — not ideal for large luggage
- ! Cash only — no credit cards accepted
- ! Services and activities reduced during the low season (Oct–Mar)
- ✓ Most unique accommodation on Green Island — the tube design delivers on every photo
- ✓ Sea views from the room from the moment you open your eyes
- ✓ David the owner is outstanding — responsive, helpful, full of local knowledge
- ✓ Excellent value for the experience provided
- ! Tube rooms are small — large suitcases will be a tight fit
- ! Cash only — no card payments
- ! Green Island itself is remote; logistics need planning in advance
- 💡If you need a spacious room with large suitcases — the tube rooms are compact capsule pods, not standard hotel rooms → choose the Suite for more floor space, or travel with cabin-sized bags only
- 💡If you speak no English and David is unavailable — communication can be patchy at busier times since this is an informal owner-operated B&B, not a staffed hotel → install Google Translate and confirm key details by LINE message before arrival
- 💡If you're visiting October–March — the low season means fewer dive operators, shorter restaurant hours and reduced activities; the B&B itself may offer a quieter, limited-service experience → confirm exactly which activities will be available for your dates with David before booking