Island Hopping in Southern Thailand: The Complete Guide

Two Seas, Two Completely Different Experiences

Thailand's southern peninsula is flanked by two bodies of water with dramatically different characters. Choose your coast based on when you're traveling — they have almost opposite wet and dry seasons.

Gulf of Thailand (east coast): Koh Samui, Koh Phangan, Koh Tao. Best February–September. Rougher October–January.

Andaman Sea (west coast): Phuket, Phi Phi, Krabi, Koh Lanta, Koh Lipe. Best November–April. Monsoon May–October (some islands become inaccessible).

You can't easily island-hop between the two coasts — they're on opposite sides of a peninsula, hundreds of kilometers apart. Most travelers pick one coast per trip.

The Gulf Islands

Koh Samui

Character: The developed, resort-heavy island. International airport, full-size hospitals, every international hotel chain. Thailand's second most-visited island.

Best for: Couples seeking comfort, families, those who want a proper beach holiday without roughing it.

Beaches: Chaweng is the main beach (busy, buzzy, good facilities). Bophut (Fisherman's Village) is more relaxed and has excellent restaurants. Lamai is the party alternative to Chaweng. Mae Nam is quieter and better for budget travelers.

Getting there: Flights from Bangkok (Bangkok Airways dominates, expensive — budget 3,000–5,000 THB return), or bus + ferry from Bangkok (8–10 hours, 700–900 THB). Ferries from Koh Phangan: 20–30 minutes, multiple daily departures (150–200 THB).

Budget: Mid-range to expensive. Guesthouses from 600 THB, resorts from 2,500 THB. Food is pricier than mainland — budget 200 THB for a street food meal.

Skip it if: You're on a tight budget or want an untouched beach experience — Koh Samui is thoroughly commercialized.

Koh Phangan

Character: Famous for the Full Moon Party (20,000+ people on the beach at Haad Rin, monthly). Also — increasingly — a wellness and yoga destination.

Best for: Party travelers (Full Moon, Half Moon, and Black Moon parties), yoga retreats, budget beach stays.

Full Moon Party: Happens on or near the full moon every month. Haad Rin beach transforms into a massive outdoor club — fire shows, multiple sound systems, 100 THB buckets of rum/Red Bull everywhere. It's extraordinary and completely overwhelming. Book accommodation on Koh Phangan 4–6 weeks ahead for Full Moon dates; prices triple. Check the festivals calendar for exact dates.

Non-party Koh Phangan: Most of the island is actually quiet. The north has peaceful beaches (Thong Nai Pan, Bottle Beach) accessible only by boat or very rough road. These are some of the best beaches in the Gulf.

Getting there: Ferry from Koh Samui: 30 minutes (200 THB). Ferry from Surat Thani pier: 2.5–3 hours (300–400 THB).

Budget: Significantly cheaper than Koh Samui. Guesthouses 400–800 THB, bungalows on quiet beaches 300–600 THB.

Koh Tao

Character: The Diving Island. The cheapest and most accessible PADI Open Water certification in the world is done here. Also just a great budget beach island.

Best for: Divers (experienced and beginners), budget travelers, those wanting an island that isn't overdeveloped.

Diving: Open Water certification: 9,500–12,000 THB (4 days). Fun dives: 800–1,200 THB per dive. Some of the best dive sites include Chumphon Pinnacle, Southwest Pinnacle, and the HTMS Sattakut wreck. Visibility is usually 15–30m. Best months for diving: March–May and September–November (between the two rough seasons).

Getting there: High-speed catamaran from Surat Thani: 3.5 hours (600–800 THB). Ferry from Koh Phangan: 1.5 hours (400 THB). Night boat from Chumphon pier: 6 hours (overnight, basic berths 500 THB).

Budget: The cheapest Gulf island. Dorm beds 200–300 THB. Guesthouses 400–700 THB. Excellent street food for 60–80 THB.

The Andaman Islands

Phuket

Character: Thailand's largest island and most popular tourist destination. Fully developed — it's essentially a small city with beaches. Has an airport with direct international flights.

Best for: Those flying in directly, first-time visitors to Thailand, families, couples wanting resort comfort.

Beaches: Patong is the main beach/party zone — loud, busy, full of bars and clubs. Kata and Karon are more family-friendly. Kamala is quieter. Bang Tao (north) has good beach clubs. Rawai in the south is local-feeling.

Getting there: Direct international flights from most Asian hubs. Domestic flights from Bangkok: 1,600–4,000 THB return. The bus + ferry combo from Bangkok: 12–14 hours (700–1,000 THB).

Budget: Priciest of the southern islands. Guesthouses in Patong from 800 THB. Beachfront resorts from 3,500 THB. Food ranges from 80 THB street food to 400 THB restaurant mains.

Day trips from Phuket: Phi Phi Islands (half-day 900 THB, full day 1,500 THB), James Bond Island in Phang Nga Bay (1,500 THB), Similan Islands liveaboard diving (8,000–15,000 THB for 2 nights).

Koh Phi Phi

Character: Beautiful and famous — partly because of "The Beach" movie — and therefore extremely busy. Ko Phi Phi Don is the inhabited island; Ko Phi Phi Ley is the uninhabited lagoon island (Maya Bay).

Best for: Day-trippers from Phuket or Krabi, snorkeling, party scene, Instagram photos.

Maya Bay: The beach was closed for 3 years (2018–2022) to allow coral recovery. It's now open again but strictly managed — day visits only, no overnight boats, limited visitor numbers. The restoration has worked — the coral and marine life have partially recovered.

Getting there: Ferry from Phuket: 1.5–2 hours (350–500 THB). Ferry from Krabi: 1.5 hours (300–400 THB). Multiple daily departures each direction.

Honest assessment: Phi Phi is very beautiful and very crowded. The main village (Tonsai) is crammed with guesthouses, bars, and souvenir shops. Sunrises from the viewpoint are spectacular and worth the effort. Stay one or two nights and move on — or do it as a day trip.

Krabi and Railay Beach

Character: Railay is a peninsula accessible only by boat (30 THB longtail from Krabi Town pier), surrounded by dramatic limestone karst cliffs. No roads, no cars. Rock climbers worship this place. Ao Nang is the nearby mainland beach town with better transport connections.

Best for: Rock climbers, those who want dramatic scenery, multi-day Andaman base.

Rock climbing: Railay and nearby Tonsai Beach are some of Asia's best climbing destinations. Full-day guided climbing: 1,500–2,000 THB. Multiple operators in Railay Beach.

Getting there: Fly to Krabi (cheaper than Phuket flights often) from Bangkok, then 45-minute taxi to Krabi Town pier, then longtail boat to Railay (30 THB, 15 minutes). Total from Bangkok: 4–5 hours.

Koh Lanta

Character: The grown-up alternative to Phi Phi. Long straight beaches, excellent resorts, strong international expat community, good diving. Not a party island.

Best for: Families, couples, longer stays, diving, those escaping the Phuket crowds.

Getting there: Ferry from Phi Phi: 1.5 hours (300–400 THB). Ferry from Krabi (via Klong Chilat pier): 1.5 hours (300 THB). Only runs November–April — in wet season, Koh Lanta is accessible by van + ferry combo.

Koh Lipe: The Hidden Gem (Getting Discovered)

Character: Thailand's southernmost inhabited island, just 4km from the Malaysian border. Tiny (3km long), car-free (no roads, just sandy paths), astonishing turquoise water. The coral here is among the best-preserved in Thailand.

Best for: Those wanting Phi Phi's beauty without the crowds. Divers. People ending a Thailand trip and crossing to Langkawi, Malaysia.

Getting there: From Pak Bara pier (2.5 hours drive from Hat Yai): 1.5-hour speedboat, 650–700 THB. From Langkawi, Malaysia: 1.5 hours, around 1,000 THB. Seasonal only — ferries run November–May. The island becomes very difficult to reach June–October.

Honest warning: Koh Lipe is being rapidly developed. It was genuinely undiscovered 10 years ago; it's not that anymore. Still beautiful, still worth going, but go soon if you want the quieter paradise experience.

Island-Hopping Routes

Classic Gulf loop (7–10 days): Bangkok → Koh Samui (2 nights) → Koh Phangan (2–3 nights, time around Full Moon if desired) → Koh Tao (3–4 nights for diving) → back to Bangkok via Surat Thani

Andaman classic (10–14 days): Bangkok → Phuket (2 nights) → Phi Phi (2 nights) → Koh Lanta (3 nights) → Krabi/Railay (2 nights) → Koh Lipe (3 nights) → Langkawi/Malaysia or fly home from Krabi

Budget island hopping: Koh Tao + Koh Phangan (Gulf). Cheapest combination with best value for money.

Booking Ferries

Book ferries through 12go.asia or Lomprayah/Songserm/Raja Ferry direct websites. Don't rely on last-minute walk-up tickets during peak season (December–January) — popular routes sell out. For Koh Lipe in particular, book ferry transport at least 2–3 days ahead during November–January.

Quick Tips

• Never pay for a sun lounger on a beach — they're optional and usually overpriced
• Longtail boat trips to nearby beaches can be negotiated directly with boat drivers (400–800 THB per boat for a half-day, shareable with other travelers)
• Snorkeling gear rental: 100–150 THB/day at most island dive shops
• Check the festivals calendar — Full Moon Party and Loy Krathong affect availability dramatically
• Travel insurance is essential for island activities — jet skis, boat trips, and motorbikes account for most tourist injuries