Written by Annie Shi
Few things in the world can captivate the imaginations of explorers and storytellers alike like the allure of the open sea.
Aquatic campaigns and adventures in tabletop roleplaying games (TTRPGs) can set the scene for a distinctive blend of exploration, danger, and mystery. From battling fearsome pirates, unearthing hidden treasures, and discovering ancient maritime lore, the possibilities for unforgettable adventure stretch as far as the eye can see.

Whether your players are plotting a course through dangerous waters or engaging in a fierce naval battle with another ship, battlemaps can be an invaluable tool for any sea-faring campaign.
In this article, we’ll be diving into the best open ocean maps, each one perfect for bringing the vast, unpredictable waves to life in your high-seas campaign. No matter if your players are exploring a tribal floating village, storming a pirate lord’s lair, or defending a fort in the middle of the ocean, these maps will help you create an unforgettable adventure on the open water.
1. Open Ocean Map Pack

What would an open ocean map article be without our modular Open Ocean map pack? This versatile collection is a must-have for any aquatic adventure and is sure to keep your sailors on their toes.
With its whopping 84 map variants and encounters, this map is a treasure trove of oceanic scenarios that perfectly capture the vastness and beauty of the sea—from tranquil sunlit waters and desolate sunken ruins, to dramatic shipwrecks and treacherous volcanic islands. With its
For DMs, this map pack can help you create any narrative you want your adventure to take. You could craft adventures that span multiple sessions around some of these maps, but individual maps can also be slotted in as random encounters to fill sailing time, adding a sense of excitement and unpredictability to your players’ otherwise peaceful voyage.
2. Midair Dragon Flight - Sea

What better way to explore the vastness of the ocean than with the Sea variant of the Midair Dragon Flight series—a map that perfectly showcases the seemingly endless expanse of deep, vibrant blue water, with a bird's-eye perspective from high above the waves.
The full, concentrated focus of this map is the vastness of the ocean—after all, the glory of the ocean certainly deserves the spotlight in any high-seas campaign. Tranquil and boundless, the sheer scale and depth of the sea are put on full display here, with only a few birds soaring overhead to break the monotony.
While this map might not have the drama and flair of a bustling port or haunted shipwreck, its blank canvas provides the perfect foundation for building any of your own encounters. Use it to set the stage for fierce naval battles against rival ships, or the moment of eerie calm before the storm. The simplicity and versatility of this map make it a fantastic tool for any DM looking to create an immersive ocean encounter.
3. Floating Village - Original Day

Now that we’ve covered the essential groundwork, let’s get the ball rolling with a vibrant, thrilling map to kick your campaign into high gear! Few maps offer as much potential for worldbuilding and encounters with intriguing NPCs as this Floating Village map, where a small community thrives just off the shallows of the open ocean.
Constructed out of driftwood, this village consists of several floating huts surrounding a larger chief’s house, decorated with the bones of a massive sea creature. The visual storytelling is rich in this map, with the monsters’ bones and the village's isolation from the mainland hinting at the village’s history and the villagers’ resilience.
Use this map to immerse your players in a variety of introductory coastal adventures, from fishing with the village’s inhabitants to learning first-hand the origins of the sea monster’s bones that adorn the houses. Your players might find themselves defending the village from oceanic threats or negotiating with the village leaders for supplies and safe passage, depending on the story you want to tell with your world.
4. Pirate Lord's Lair - Original Day

Speaking of stories, few maps tell as grand a tale as this Pirate Lord’s Lair. This map set includes both the exterior and interior settings of a formidable pirate’s hideaway for your players to discover, explore, and maybe even conquer.
The exterior of the map features a colossal superstructure hewn together from the remnants of ravaged ships and adorned with the behemoth skulls of various sea monsters. The sheer scale and environmental storytelling of the stronghold leave no room for doubt: the individual who owns this place is not to be trifled with. Inside, the map reveals a grand meeting room, surrounded by a lattice of wooden bridges connecting to various rooms and areas.
For DMs, this map provides a gorgeous and atmospheric setting for encounters with a fearsome villain (or potential ally) and their crew. Use the exterior for naval battles or sneaky infiltrations, while the interior can serve as a dramatic stage for negotiations, ambushes, and confrontations.
5. War Room Exterior - Sea

Okay, we’ll admit, we’re cheating a little bit by including this map in an “open ocean” map list, but the dramatic charm of this War Room Exterior - Sea map is just too good to pass up—plus, it’ll fit seamlessly in any seafaring campaign.
This exterior map features a majestic ocean vista, a pristine courtyard, a grand waterfall cascading down the side of an imposing statue, and a long table exuding grandeur at the center of the scene. Flags and statues adorn the overlook, completing a commanding atmosphere perfect for any high-stakes encounter or plot development.
Naturally, this map is great for a diplomatic summit or secret meeting. While the ocean overlook might be strategic and scenic, it also makes the council susceptible to naval attacks, making it a great backdrop for an encounter that your players might need to attend, guard, or even crash.
6. Roadside Ambush - Coast Day

Ideal for landing on any island, this Roadside Ambush - Coast map offers a perfect, versatile setting to test your players’ mettle with.
This map features a pathway winding between towering rocky formations nestled on a craggy seaside shore, leading deeper inland and into a secluded cove. The shallow waters and birds lazily flying overhead create a serene atmosphere, while the map's layout makes it perfect for unexpected ambushes.
Use this map to create a tense combat encounter that involves strategic, environmental planning. Your players might find themselves beset by roadside bandits or tribal creatures, or even having to defend the island itself against coastal raiders.
7. Deep Sea Organ - Coast

For a change of pace from the previous vibrant, sunlit ocean maps, this dramatic Deep Sea Organ - Coast map is sure to deliver. Featuring a magnificent rock outcrop teeming with vibrant corals and lush aquatic vegetation, this variant map turns a gorgeous underwater scene into an atmospheric coastal one.
The map showcases an imposing coral reef rising from the seafloor, with intricate coral formations forming a stunning visual contrast against the endless blue of the ocean. Amidst the dense, lush vegetation is a rocky platform, waiting to be populated by any number of exciting encounters.
Whether your players are hunting down an elusive aquatic creature or investigating hidden secrets among the reef, this map could serve perfectly as a dramatic stage for an artifact discovery quest or epic boss battle.
For ideas on running a memorable aquatic encounter, check out the Kuo-Toa encounter guide in our Monster Encounters series!
8. Dead Angel Reef - Original No Angel Day

A giant coral reef rising from the water can be the backdrop for a dramatic scene, but it can also just be breathtaking! This Dead Angel Reef is a stunning scene just teeming with life and color, sure to make your players stop in their tracks.
Every inch of this scene is dominated by colorful rocks, lush vegetation, and flourishing corals. Stepping stones mark a path across the water’s surface, leading to mysterious ruins that hint at something long lost to time.
Use this map to create a visually rich area for your players to explore: whether they’re stopping at this scenic spot to rest, or they’re searching for hidden secrets amidst the reef, the intricate beauty of this map is sure to captivate their interest.
9. Shadowfell Fortress Interior - Ocean Fort

While the ocean can be beautiful, it can also be foreboding in equal measure. The eerie depths of this Shadowfell Fortress Interior - Ocean Fort map are a perfect representation of that.
Extending ominously into the depths of the ocean, this fort is constructed entirely of grey stone, featuring several towers and a foreboding courtyard that leads into a towering keep. Stone steps extend outward into a solitary lookout tower that peers out into the aquatic expanse.
This map is ripe for chilling encounters within the dark confines of the fortress; send your players on a quest to infiltrate the keep, defend the stronghold from sea-based threats, or even escape from its shadowy bowels.
10. Elven Magitech Portal - Sea

And closing out our top picks is this breathtaking Elven Magictech Portal, the perfect stage for an epic, climactic showdown.
An enchanting blend of ancient magic and intricate technology, this map depicts a pristine courtyard extending out into the sea—smooth, iridescent marble shimmering under the ethereal light. Descending steps lead to a series of platforms over the water, culminating in the centerpiece: a grand blue portal leading to locations far beyond.
Whether your players are trying to get through the portal, defending it from outside threats, or keeping something ancient and dangerous from coming through, the stakes are high, and the encounters your players have on this majestic map are sure to be unforgettable.
Didn’t find what you were looking for?
No worries! The Czepeku website has over 12,000 maps just waiting to be explored. With each map meticulously tagged by settings and characteristics, it’s effortless to find exactly what you need for your story.
Head over to the Czepeku Map Library to browse our entire collection and bring your campaign to life with the perfect map, scene, or location!
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