Big Fish Country is not just a dive site—it’s a rite of passage for any serious diver exploring Indonesia. Located just off the southern tip of Maratua Island, this legendary spot promises fast currents, thrilling drifts, and big marine action. If you're staying at Sienna Resort, you're already halfway to one of Southeast Asia’s most exhilarating underwater experiences.

While the site can be accessed year-round, the best time to dive is during the dry season from April to October. Conditions are ideal during July and August when:

• Water visibility ranges from 20 to 30 meters
• Marine life is most active
• Surface conditions are calm
  

Avoid diving during stormy or low-current days as the site loses some of its magic.

The reason this site has its name is clear the moment you descend:

• Barracuda tornado
• Bumphead parrotfish cruising in packs
• Grey reef sharks and eagle rays
• Mantas pass through from April to September
• Macro life: pygmy seahorses, shrimp, and nudibranchs on the walls

Every dive is different depending on current strength, moon phase, and season.

While Big Fish Country is the highlight, Sienna Resort gives you access to other top sites:

• Kakaban Lake: snorkel with stingless jellyfish
• Sangalaki Manta Point: glide beside majestic mantas
• Turtle Traffic: calm dive with guaranteed turtle sightings
• Light House Reef: perfect for an afternoon reef dive

Sienna Resort offers seasonal dive package options. You can also enjoy bonus perks like moonlight dinners or complimentary snorkeling trips.