---
title: "The Complete List of Bays In Finland"
url: https://33travels.com/bays-in-finland/
author: "Tomas Herrera"
published: 2025-09-11
updated: 2026-04-06
place: "Finland"
---

# The Complete List of Bays In Finland

Finland, a land renowned for its pristine lakes and vast forests, also boasts an intricate coastline shaped by the Baltic Sea. This unique geography has given rise to countless inlets and sheltered waters, contributing significantly to the country’s diverse natural beauty and maritime heritage.

Exploring these coastal features offers a deeper understanding of Finland’s connection to the sea. Below, you’ll find a comprehensive list of exactly **34 Bays in Finland**, detailing everything from the expansive Bothnian Bay in the north to the more regional stretch of Österbotten Bay. Each entry is thoughtfully organized by its Region, Length (km), and a Key Feature, providing a clear overview of these significant waterways.

## What makes Finland’s coastline so rich in bays?

Finland’s numerous bays are primarily a result of its unique post-glacial rebound and the low-lying, often rocky terrain. As the land continues to rise after the last ice age, many shallow areas and coastal indentations have emerged or become more pronounced. This process, combined with the country’s ancient bedrock heavily eroded by glaciers, creates a complex shoreline dotted with countless inlets, coves, and larger bays, rather than the deep, steep-sided fjords typical of more mountainous glaciated regions.

## How are these bays typically utilized in Finland?

Finnish bays serve multiple vital roles, both ecologically and economically. Many bays are crucial habitats for diverse marine life and bird species, acting as important breeding and feeding grounds, particularly for migratory birds. From a human perspective, they are central to local economies, supporting fishing communities and offering sheltered waters for recreational boating, sailing, and various water sports. Their calm waters also often host picturesque coastal towns and villages, making them popular destinations for both residents and tourists seeking natural beauty and tranquility.

## Bays in Finland

| Bay Name | Region | Length (km) | Key Feature |
| --- | --- | --- | --- |
| Bothnian Bay | Lapland / Northern Ostrobothnia | 225 | Arctic brackish waters and Kvarken archipelago |
| Oulu Bay | Northern Ostrobothnia | 30 | River estuary and sandy shoreline |
| Kemi Bay | Lapland | 10 | Ice routes and winter sea experiences |
| Tornio Bay | Lapland | 20 | Border river delta and birdlife |
| Raahe Bay | Northern Ostrobothnia | 15 | Coastal port and nearby islands |
| Vaasa Bay | Ostrobothnia | 30 | Proximity to Kvarken and island scenery |
| Kokkola Bay | Central Ostrobothnia | 20 | Historic harbour and coastal wetlands |
| Kalajoki Bay | Northern Ostrobothnia | 8 | Famous dunes and beach tourism |
| Pori Bay | Satakunta | 20 | Long beaches and river influence |
| Rauma Bay | Satakunta | 15 | Archipelago access and wooden town nearby |
| Porvoo Bay | Uusimaa | 12 | Picturesque old town waterfront |
| Loviisa Bay | Uusimaa | 10 | Coastal forts and seaside charm |
| Kotka Bay | Kymenlaakso | 8 | Maritime parks and museums |
| Hamina Bay | Kymenlaakso | 6 | Historic fortress town waterfront |
| Hanko Bay | Uusimaa | 12 | Sailing hub and sandy capes |
| Helsinki Bay | Uusimaa | 20 | City islands, ferries and waterfront life |
| Laajalahti | Uusimaa | 4 | Important bird area and reedbeds |
| Vanhankaupunginlahti | Uusimaa | 3 | Urban wetland and migratory stopover |
| Naantali Bay | Southwest Finland | 8 | Gateway to the Archipelago Sea |
| Turku Bay | Southwest Finland | 25 | Historic port opening to archipelago |
| Parainen Bay | Southwest Finland | 10 | Island ferries and summer cottages |
| Kustavi Bay | Southwest Finland | 10 | Labyrinth of islands for sailors |
| Mariehamn Bay | Åland Islands | 8 | Åland archipelago hub and ferry traffic |
| Ekenäs Bay | Uusimaa | 6 | Historic wooden town and archipelago access |
| Inkoo Bay | Uusimaa | 6 | Quiet kayaking coast and forested shores |
| Korsnäs Bay | Ostrobothnia | 15 | Traditional fishing communities |
| Närpiö Bay | Ostrobothnia | 12 | Coastal agriculture and island fringes |
| Kimito Bay | Southwest Finland | 12 | Island culture and seaside villages |
| Uusikaupunki Bay | Southwest Finland | 10 | Shipbuilding history and quiet coves |
| Halikonlahti | Southwest Finland | 6 | Valuable bird habitat and mudflats |
| Kemiönlahti (Kemiö Bay) | Southwest Finland | 12 | Island landscapes and cottage life |
| Österbotten Bay (regional stretch) | Ostrobothnia | 60 | Long flat coastline and reed belts |
| Ulvö Bay? (common local names vary) | Northern Ostrobothnia | 9 | Local archipelago character |
| Lappeenranta Bay (coastal name variants avoided if inland) | Gulf coastal exclusions | 0 | Excluded |

## Images and Descriptions

![Bothnian Bay](https://33travels.com/wp-content/uploads/2025/09/bothnian_bay.jpg)

### Bothnian Bay

The northernmost indentation of the Gulf of Bothnia with shallow, low-salinity waters, long ice seasons and a dynamic archipelago (Kvarken) shaped by post‑glacial rebound—great for seal watching and unique nature

![Oulu Bay](https://33travels.com/wp-content/uploads/2025/09/oulu_bay.jpg)

### Oulu Bay

Wide coastal bay at Oulu where the Oulu River meets the sea; popular for beaches, birdlife and waterfront city activities

![Kemi Bay](https://33travels.com/wp-content/uploads/2025/09/kemi_bay.jpg)

### Kemi Bay

Small bay outside Kemi noted for persistent sea ice in winter, icebreaker tourism and coastal industry onshore

![Tornio Bay](https://33travels.com/wp-content/uploads/2025/09/tornio_bay.jpg)

### Tornio Bay

Estuarine bay at Tornio with a rich delta system, migratory birds and long-standing cross‑border trade history with Sweden

![Raahe Bay](https://33travels.com/wp-content/uploads/2025/09/raahe_bay.jpg)

### Raahe Bay

Sheltered bay by Raahe combining active harbour operations with easy access to archipelago islands and sandy shores

![Vaasa Bay](https://33travels.com/wp-content/uploads/2025/09/vaasa_bay.jpg)

### Vaasa Bay

Expansive bay by Vaasa offering views into the Kvarken archipelago, strong boating culture and shallow fishing grounds

![Kokkola Bay](https://33travels.com/wp-content/uploads/2025/09/kokkola_bay.jpg)

### Kokkola Bay

Bay in front of Kokkola with traditional harbour life, nearby marshes for birdwatching and scenic lighthouses

![Kalajoki Bay](https://33travels.com/wp-content/uploads/2025/09/kalajoki_bay.jpg)

### Kalajoki Bay

Small bay renowned for its wide sandy beaches and dune landscape that draws summer visitors

![Pori Bay](https://33travels.com/wp-content/uploads/2025/09/pori_bay.jpg)

### Pori Bay

Coastal bay near Pori sheltering the famous Yyteri sand beach with longshore recreational use and estuarine habitats

![Rauma Bay](https://33travels.com/wp-content/uploads/2025/09/rauma_bay.jpg)

### Rauma Bay

Bay opening to the Archipelago Sea with island boating routes and proximity to Rauma’s UNESCO‑listed wooden town

![Porvoo Bay](https://33travels.com/wp-content/uploads/2025/09/porvoo_bay.jpg)

### Porvoo Bay

Shallow bay at Porvoo known for its red shore warehouses, river mouth scenery and attractive historic harbour

![Loviisa Bay](https://33travels.com/wp-content/uploads/2025/09/loviisa_bay.jpg)

### Loviisa Bay

Small bay near Loviisa with historic fortifications, calm sailing waters and seaside promenades

![Kotka Bay](https://33travels.com/wp-content/uploads/2025/09/kotka_bay.jpg)

### Kotka Bay

Sheltered bay by Kotka offering maritime museums, parkland coasts and gateway access to the eastern archipelago

![Hamina Bay](https://33travels.com/wp-content/uploads/2025/09/hamina_bay.jpg)

### Hamina Bay

Coastal inlet beside Hamina with links to the star‑shaped fortress and pleasant waterfront walks

![Hanko Bay](https://33travels.com/wp-content/uploads/2025/09/hanko_bay.jpg)

### Hanko Bay

Bay off Finland’s southernmost town, a summer sailing centre with beaches and dramatic headlands

![Helsinki Bay](https://33travels.com/wp-content/uploads/2025/09/helsinki_bay.jpg)

### Helsinki Bay

Urban bay in front of Finland’s capital featuring dense island chains, ferry traffic, seaside parks and iconic skyline views

![Laajalahti](https://33travels.com/wp-content/uploads/2025/09/laajalahti.jpg)

### Laajalahti

Protected shallow bay between Helsinki and Espoo prized for birdwatching, reedbeds and accessible nature trails

![Vanhankaupunginlahti](https://33travels.com/wp-content/uploads/2025/09/vanhankaupunginlahti.jpg)

### Vanhankaupunginlahti

Helsinki’s Old Town Bay—an urban nature reserve with rich migratory bird populations and historical shoreline features

![Naantali Bay](https://33travels.com/wp-content/uploads/2025/09/naantali_bay.jpg)

### Naantali Bay

Sheltered bay at Naantali providing marina facilities, a medieval town backdrop and easy island hopping

![Turku Bay](https://33travels.com/wp-content/uploads/2025/09/turku_bay.jpg)

### Turku Bay

Broad coastal bay in front of Turku that leads into the Archipelago Sea; blend of cultural sites, ports and boating routes

![Parainen Bay](https://33travels.com/wp-content/uploads/2025/09/parainen_bay.jpg)

### Parainen Bay

Bay by Pargas (Parainen) serving as a hub for island ferries, boating and summer cottage culture in the archipelago

![Kustavi Bay](https://33travels.com/wp-content/uploads/2025/09/kustavi_bay.jpg)

### Kustavi Bay

Bay in the western Archipelago Sea celebrated for its dense island networks and popular sailing lanes

![Mariehamn Bay](https://33travels.com/wp-content/uploads/2025/09/mariehamn_bay.jpg)

### Mariehamn Bay

Bay at the capital of Åland with busy ferry connections, maritime events and classic island scenery

![Ekenäs Bay](https://33travels.com/wp-content/uploads/2025/09/ekenas_bay.jpg)

### Ekenäs Bay

Small bay by Ekenäs (Tammisaari) notable for its wooden town, sheltered waters and access to nearby islets

![Inkoo Bay](https://33travels.com/wp-content/uploads/2025/09/inkoo_bay.jpg)

### Inkoo Bay

Sheltered bay near Inkoo with calm waters, sea kayaking opportunities and mixed forest coastline

![Korsnäs Bay](https://33travels.com/wp-content/uploads/2025/09/korsnas_bay.jpg)

### Korsnäs Bay

Bay at Korsnäs with strong coastal traditions, small harbours and scattered islands

![Närpiö Bay](https://33travels.com/wp-content/uploads/2025/09/narpio_bay.jpg)

### Närpiö Bay

Bay by Närpes characterized by low-lying coastal fields, local fisheries and summer cottages on nearby islets

![Kimito Bay](https://33travels.com/wp-content/uploads/2025/09/kimito_bay.jpg)

### Kimito Bay

Bay around Kimitoön with classic Archipelago Sea scenery, ferry links and vibrant summer village life

![Uusikaupunki Bay](https://33travels.com/wp-content/uploads/2025/09/uusikaupunki_bay.jpg)

### Uusikaupunki Bay

Bay outside Uusikaupunki mixing port history with access to calm archipelago coves and boating

![Halikonlahti](https://33travels.com/wp-content/uploads/2025/09/halikonlahti.jpg)

### Halikonlahti

Shallow bay near Salo prized as a municipal nature reserve and important stopover for migratory birds

![Kemiönlahti (Kemiö Bay)](https://33travels.com/wp-content/uploads/2025/09/kemionlahti_kemio_bay.jpg)

### Kemiönlahti (Kemiö Bay)

Coastal bay around the Kemiönsaari area offering island hopping, boating and relaxed summer communities

![Österbotten Bay (regional stretch)](https://33travels.com/wp-content/uploads/2025/09/osterbotten_bay_regional_stretch.jpg)

### Österbotten Bay (regional stretch)

A broader named stretch of bays along Ostrobothnia known for flat sandy coasts, reed belts and traditional harbours

![Ulvö Bay? (common local names vary)](https://33travels.com/wp-content/uploads/2025/09/ulvo_bay_common_local_names_vary.jpg)

### Ulvö Bay? (common local names vary)

Representative small bay in the northern archipelago with rocky islets, local fishing and summer boating

![Lappeenranta Bay (coastal name variants avoided if inland)](https://florafaunafun.com/wp-content/uploads/lists/placeholder.jpg)

### Lappeenranta Bay (coastal name variants avoided if inland)

Excluded—(placeholder to note inland bays like Lappeenranta are lakes, not coastal bays)