As our subs depart we see the other sub (Sea Searcher Beta) through the rocks. The crew of rowdy explorers ready for adventure. Our unseen captain banters with them briefly over the radio before we dive into the depths. Using similar technology to Shanghai Pirates exciting dive to the bottom of the ocean, we plunge deep below the waves to the darkest depths. The windows of our suspended tram ride vehicles (The same used for Universal's Kongfrontation) fill with water and bubbles (like Tokyo's 20,000 Leagues Under the Sea Ride) to complete the illusion that we are actually in the submarine, Sea Searcher Alpha, exploring an underwater cavern searching for the lost City of Atlantis when in reality the sets and figures remain dry. That way there's no need to worry about the practicality concerns with actually putting a ride underwater.

This section of the ride is quiet. Slow. Moody. Rock work with the occasional bits of crashed ships and other subs scattered about. Many have gone on this voyage before, but none have survived. We even pass directly through the hull of the other half of the wrecked ship of the merchants who founded Adventure Atoll tying this ride more into our land's backstory and providing a striking visual. There is the occasional nervous comment from either our captain or the crew of The Beta, but nothing much. Again, this section is quiet and atmospheric.

A quiet melody starts to be heard from an unknown source. Something Hauntingly Beautiful, but tough to make out. Our subs continue through the caves and we start to see ruins. The crumbling remains of the sunken city. Have we truly found Atlantis?

The Beta Crew are nervous, but get quickly distracted as they start to see the treasures of Atlantis scattered among the ruins. Skeletons of previous explorers who were consumed by their own greed are scattered about as well. Boney hands detached from their bodies, seemingly still moving and reaching for piles of gold. Though their movement must just be the waves, right? Our Captain tells us and the Beta Crew to keep focused, the real treasure is at the heart of the city.

As our sub turns a corner, we see a section of Atlantis that looks pristine. Glistening with Pearls and jewels. A mix of Greek columns and Ottoman domes blend together to make strikingly beautiful architecture in this amazing lost city! Treasures are everywhere as are sea creatures swimming through the city. Most effects are practical, but screens and projections are used towards the back of the room to help give it more depth and life! Sea Searcher Beta (the other sub) is parked in the center of the courtyard. The Explorers have now donned their dive suits and are exploring by swimming through it. Sirens are beckoning the sailors onward as the cheery song plays. The Captain of Sea Searcher Alpha (the sub that guests are riding in) warns us to stay in the ship.

Eventually we enter a large Ballroom in the Atlantis Palace. Sailors and Sirens dance together in a joyous celebration! (Since the Haunted Lighthouse didn't feature the iconic ballroom scene from the Haunted Mansion, this will serve as an homage to the dark ride E-Ticket). The further we travel through the ballroom, we start to see sirens dancing with the skeletons of sailors and explorers who had come this way before. The colors become darker. The walls are noticeably more worn.

The sirens dance with them as we slowly make our way to the altar, which is on a pyramid similar to the one we entered as part of the exterior building. Once we get to the altar, the sirens get the Beta Crew onto a platform, where they are disintegrated into atoms (Pepper's Ghost disappearing effect) as a sacrifice to spawn this spirit, who has been asleep for centuries. A mysterious, shadowy sea creature. Very large and very angry. The very same shadow that we saw on the tile mosaic earlier.

Guests resisted the temptation of the Sirens, and those were spared from the ceremony. But the creature is still there and is looking for creatures to eat.

As our sub proceeds through the city (which is now crumbling ruins once more as the magic has faded) looking for a way out, the creature proceeds to attack the sirens, who are in shock at the creature they spawned not being the deity they thought, but in fact a curse that sank the city in the first place. We see chaos as our sub tries to navigate out of a underwater temple that is falling apart around us and Sirens are now running scared trying to escape themselves. After eating a couple sirens, the spirit targets our sub, making the vehicle lurch just out of the way (The Kongfrontation Tram has mechanics in it to shake, these will be used extensively during this segment to up the excitement).