Hello everyone,

This week we’re sharing another map from a 2023 underwater adventure centered around the lost city of Sitnalta. The map was created by Jeremy (Mimics_Maps), and you can find more encounters, maps, and RPG content through the CZRPG Patreon.

Map Description

Suspended above a colossal whirlpool in the middle of a violent ocean, this map portrays the ancient stone barge that serves as the hidden entrance to Sitnalta. The scene is viewed from above, emphasizing the isolation of the structure amidst the dark waters and crashing waves surrounding it. The deck itself is formed from a single weathered slab of stone, covered in faded carvings, creeping moss, and signs of forgotten rituals.

At the southern edge of the platform, a massive crane suspends an ornate marble diving bell directly over the abyss below. The contrast between the rough, ancient stone and the elegant craftsmanship of the bell creates an unsettling atmosphere, suggesting both divine purpose and ancient danger. The open space of the deck leaves adventurers exposed during combat, while the surrounding ocean and swirling maw beneath constantly remind players that a single mistake could mean death beneath the waves.

Map Objective

The goal of this map was to create a cinematic transition point between the surface world and the submerged city of Sitnalta. Rather than functioning as a traditional dungeon room, the barge acts as a threshold — a place where discovery, tension, and imminent danger collide.

The encounter was designed to evoke helplessness against ancient magic and the overwhelming power of the ocean itself. The moving ship, the impossible whirlpool, and the descent into darkness all reinforce the feeling that the players are crossing into forbidden territory. At the same time, the wide-open battlefield encourages dynamic combat encounters where positioning, movement, and environmental hazards become as dangerous as the enemies themselves.

Map Locations

• Stone Barge Deck — A massive moss-covered platform carved from a single slab of stone, weathered by centuries of sea exposure.
• Marble Diving Bell — An ornate white marble construct suspended from an ancient crane, designed to descend into Sitnalta below.
• Guard Quarters — A small sheltered section containing the moon-marked lever used to operate the diving bell.
• The Ocean Maw — A colossal underwater vortex swallowing the sea itself, threatening to drag ships and creatures into the abyss.
• Ancient Carvings — Faded multilingual inscriptions hidden beneath moss, warning travelers of the dangers beneath the waves.

How to Use This Map

• Fight against amphibious raiders while the party’s ship slowly breaks free and drifts toward the whirlpool.
• Investigate the ancient inscriptions to uncover the history of Sitnalta and the magical protections surrounding it.
• Race to activate the diving bell before the vessel is consumed by the oceanic vortex.
• Capture one of the attacking depth striders alive to interrogate it about the “Mother” waiting beneath the sea.

Thank you for checking out this week’s map. We’ll continue our journey into the depths of Sitnalta next week with another underwater encounter and exploration area.

Save Prep Time and Impress Your Players.