Ly Son Island Beach Guide for 2026: Sa Ky Ferries, Swimming, and Stay Prices

Ly Son (Cù Lao Ré) sits roughly 25 km off the coast of Quang Ngai province in central Vietnam, a volcanic island formed by two overlapping craters. The main island covers a small area, but its coastline packs in more geological variety than most beach destinations: black basalt cliffs, a collapsed sea arch, and one proper stretch of sand. That sandy beach, Bai Dat, lies along the southeast shore and is the island’s only real swimming spot. It is not lifeguarded, and a strong undertow can appear after heavy rain, but in calm conditions it is shallow and safe for families. Smaller coves such as Bai Chien and the Hang Cau volcanic sea arch cut into the rockier southern and eastern edges; these are better for photos and short scrambles than for getting in the water.

From January to March, Ly Son is Vietnam’s garlic capital, and the harvest dominates daily life. Garlic fields cover much of the interior, planted in volcanic sand that gives the bulbs a sharper, more mineral flavour than mainland varieties. Homestay owners and market stalls serve it raw with rice paper, fried with squid, or dried as a snack. Outside the harvest months, the fields shift to onions and dry grass, but the smell of garlic lingers around the main village.

Plan around a February–August window. February marks the end of the northeast monsoon, and the sea between Sa Ky Port and the island flattens enough for reliable high-speed ferries, which cover the 25 km in roughly 40–60 minutes. March through August bring dry, sunny days and good visibility for snorkelling around Bai Dat. Avoid October through December: typhoons and rough seas regularly stop ferries for days at a time, leaving you stranded on the mainland or stuck on the island waiting for a weather window. If your dates fall during Tet, April 30–May 1, or September 2, book ferry tickets and accommodation at least one week ahead, as domestic travel peaks can fill the island’s limited rooms quickly.

Chu Lai Airport (VCL) is the closest airport to Sa Ky Port, the mainland departure point for Ly Son. Fly there from Ho Chi Minh City or Hanoi, then take a taxi for 45–60 minutes to Sa Ky Port; taxis wait outside the terminal, and pre-booked cars can also be arranged in advance. If you are already traveling overland, take a bus or train to Quang Ngai city instead, then a short taxi ride to the port. Both routes deposit you at the same ferry terminal.

From Sa Ky Port, high-speed ferries to Ly Son take 40–60 minutes and run frequently in the calm season. In 2026, expect to pay 250,000–400,000 VND one-way per person. Bring your passport: the ticket counter will ask to see it, and you will need it again for the return trip. Ferries dock at Ly Son's main port on Cù Lao Ré; from there, a motorbike taxi or electric cart reaches most guesthouses in ten minutes. If you plan to explore independently, budget around 150,000 VND per day for a motorbike rental.

Direct boats from Da Nang to Ly Son have operated during peak summer months in past years, but the schedule is unreliable and often cancels at short notice. Do not base your itinerary on a Da Nang sailing; instead, confirm any current service at Sa Ky Port or through your accommodation before booking a separate leg to Da Nang. Around Tet, the April 30–May 1 holiday, and September 2, ferry seats sell out quickly, so reserve tickets at least one week ahead. From October to December, typhoons and rough seas can stop all Sa Ky–Ly Son ferries for several days at a time.

High-speed ferries from Sa Ky Port make the 40–60 minute run to Ly Son most reliably from February through August, when the central coast's dry season keeps seas calm enough for swimming at Bai Dat and for small-boat trips to An Binh islet. This is the window for beach time, snorkeling in designated coves, and walking the Hang Cau sea arch without rain interruptions. October through December is the opposite: typhoons and rough water regularly halt ferry service for days, and remote coves become unsafe even when boats do run.

Crowds follow Vietnam's public holidays more than the weather. Tet (late January or February in 2026), the April 30–May 1 holiday, and September 2 all fill homestays and stretch ferry queues. Book both the Sa Ky–Ly Son ferry and a room at least one week ahead for those dates; on holiday weekends, same-day tickets often sell out by mid-morning. Summer weekends are less frantic than national holidays but still push accommodation prices up, with rooms roughly doubling compared to midweek rates.

January through March overlaps the garlic harvest, when fields around the island are full of workers and purple garlic dries on mats by the road. It's a good season for photos but not for empty beaches on weekends. In 2026, budget homestay rooms run 250,000–500,000 VND per night with fans, while air-conditioned guesthouses cost 600,000–1,200,000 VND and beachfront semi-resorts start around 1,500,000 VND. Bring cash, because ATMs are limited and ferry tickets cost 250,000–400,000 VND one-way per person.

If you're flexible, aim for February–March or late April–May outside the public holidays, when the weather is settled but domestic crowds are thinner. Check with your homestay about ferry status before heading to Sa Ky Port, especially from September onward, because schedules tighten quickly as the rainy season approaches.

Bai Dat, the only major sandy beach on Ly Son's main island of Cu Lao Re, is the safest swimming spot on the island, but no beach here has lifeguards, and a strong undertow can appear even on a calm day. If you are not a confident swimmer, stay in waist-deep water and do not swim alone. Even stronger swimmers should avoid going far out after heavy rain, when runoff makes the water murky and currents less predictable. The beach is a short motorbike ride from most homestays, but there are no water-safety flags or patrols.

Avoid entering the sea at remote rocky coves such as Bai Chien or around the Hang Cau volcanic sea arch. These spots have sharp basalt ledges, sudden depth changes, and no easy exit if a wave pushes you against the rocks. The risk is highest after heavy rain, when murky water hides submerged rocks and drainage from the island adds extra currents. Even on calm days, treat these coves as photo stops, not swimming holes.

On any boat trip to An Binh islet (Dao Be), wear the life jacket provided and keep it fastened for the entire crossing. The inter-island boats are small, and seas can chop up quickly, even during the dry season. In summer, jellyfish sometimes drift close to shore at Bai Dat and other sandy stretches; ask your homestay owner before heading out, as they usually know if the water is clear that week. For snorkeling, stay in sheltered, designated areas close to shore. Straying toward the channel between the islands puts you in boat traffic and stronger currents, and a mask and fins are not a substitute for a life jacket.

If you get caught in an undertow at Bai Dat, swim parallel to the shore until the pull weakens, then angle back in. Do not fight the current directly. As a general rule on Ly Son, the fewer people in the water at any spot, the more cautious you should be.

A basic homestay room on Ly Son costs 250,000–500,000 VND per night in 2026. These are simple family-run rooms with fans, usually no air conditioning, and often clustered near the ferry port and main market area. At the lower end you get a clean bed, shared bathroom, and local advice on motorbike routes and garlic field visits. For this budget, bring Vietnamese cash: the island has limited ATMs, and many homestay owners only accept bank transfer or cash on arrival.

Mid-range options run 600,000–1,200,000 VND per night and include air-conditioned guesthouses and small boutique stays, often with breakfast. These places tend to be newer, with private bathrooms, stronger Wi-Fi, and sometimes family dinners on request. This bracket is the most practical choice if you plan to stay more than one night and want a reliable night's sleep during the hotter months between April and August. Note that these same rooms can double in price during Tet and on summer weekends, when Vietnamese families travel in large numbers.

For beachfront comfort, Ly Son has only a few semi-resort style lodges charging 1,500,000–3,000,000 VND per night. These are located near Bai Dat or the quieter eastern coves and offer direct sea access, shaded terraces, and more polished service. Even at this price, do not expect resort pools or 24-hour room service; the island's accommodation remains modest. If you want one of these rooms on a Saturday in July or over the April 30–May 1 holiday, reserve at least a week ahead.

Prices roughly double during Tet and summer weekends across all categories, so budget accordingly. Motorbike rental adds about 150,000 VND per day, and a seafood dinner can cost 80,000–200,000 VND. Since ATMs are limited and some fail during power cuts, carry enough cash to cover your room, meals, and transport for your entire stay.

Motorbike rental on Ly Son costs around 150,000 VND per day in 2026, and it remains the most reliable way to reach Bai Dat, the Hang Cau sea arch, and the garlic fields without depending on sparse taxis. Budget homestays run 250,000–500,000 VND per night; mid-range guesthouses with air conditioning cost 600,000–1,200,000 VND. Bring enough cash: the island has only a few ATMs, and you'll need paper notes for ferry tickets (250,000–400,000 VND one-way), motorbike rental, and meals. Prices roughly double during Tet and summer weekends, so book rooms at least a week ahead for those dates.

Seafood dinners at family-run restaurants typically cost 80,000–200,000 VND. Expect simple, fresh dishes—grilled squid, clams, and garlic-fried fish—rather than elaborate menus. English is limited outside the largest homestays; install a Vietnamese translation app before you arrive and use it at ferry counters, rental desks, and local eateries. Screenshot key phrases offline, because mobile data on the island can be patchy in the south.

Southern beaches and coves often accumulate plastic and fishing debris after storms between October and December, and even calm-season litter is not uncommon. If you swim at Bai Dat, ask your homestay about current conditions; there are no lifeguards on most beaches. For transfers, ferry frequency from Sa Ky Port shifts with weather and demand. Direct boats from Da Nang have appeared in peak periods but are not dependable—always confirm schedules at Sa Ky Port or through your accommodation before you book flights or buses.