# Valentin submarine pens, Germany: what it is and when to go

> Valentin submarine pens is an architectural structure (U-Boot-Bunker Valentin) in Germany (Bremen). Interests: History and Museums and art. The best time to visit is April to October and December. In June there are 16 h 41 of daylight, and in December, 7 h 18. It has articles in 11 Wikipedias, so it is not one of the busiest places in Germany: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip.

- Address: https://kokai.app/en/paises/europa/alemania/refugio-para-submarinos-de-valentin/
- Reviewed on: 2026-10-02
- Language: en

## In a nutshell

- **What it is:** Architectural structure · History, Museums and art
- **Local name:** U-Boot-Bunker Valentin
- **Where:** Germany · Rekumer Siel 1, 28777, Bremen
- **Best time:** April to October and December.
- **Nearest airport:** HAM Hamburg, 109 km as the crow flies
- **Opening hours:** Tu-Su 10:00-16:00; Sa off; PH off
- **Price:** Gratis
- **Website:** [denkort-bunker-valentin.de](https://www.denkort-bunker-valentin.de/)
- **Run by:** Landeszentrale für politische Bildung
- **Protection:** Protected heritage
- **Coordinates:** 53.21743, 8.50327

## What it is and where

Valentin submarine pens is an architectural structure (U-Boot-Bunker Valentin) in Germany (Bremen). It has articles in 11 Wikipedias, so it is not one of the busiest places in Germany: one to enjoy at a calmer pace.

Kulturdenkmal, siehe http://wiki.openstreetmap.org/wiki/Bremen/Kulturdenkm%C3%A4ler

It is in [Bremen](https://kokai.app/en/paises/europa/alemania/bremen/), where this site lists 83 more places to see, 25 km from the centre.

Its coordinates are 53.21743, 8.50327; the nearest main airport is Hamburg Helmut Schmidt Airport (HAM, Hamburg), 109 km as the crow flies. How to get around Germany (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/alemania/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=53.217433%2C8.503266)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=53.217433%2C8.503266)

- **Run by:** Landeszentrale für politische Bildung
- **Protection:** Protected heritage

It is one of the [History](https://kokai.app/en/paises/europa/alemania/historia/) and [Museums and art](https://kokai.app/en/paises/europa/alemania/museos/) places in Germany. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap.

## When to go

The best time to visit Valentin submarine pens is **April to October and December**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 7 h 49 |
| February | Possible | 9 h 33 |
| March | Possible | 11 h 30 |
| April | Best time | 13 h 42 |
| May | Best time | 15 h 36 |
| June | Best time | 16 h 41 |
| July | Best time | 16 h 14 |
| August | Best time | 14 h 33 |
| September | Best time | 12 h 24 |
| October | Best time | 10 h 15 |
| November | Possible | 8 h 19 |
| December | Best time | 7 h 18 |

In June there are 16 h 41 of daylight, and in December, 7 h 18. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather.

| What you come for | Best time | Possible |
| --- | --- | --- |
| History | April to October and December | January to March and November |
| Museums and art | April to October and December | January to March and November |

It is not the same trip whatever you come for: Valentin submarine pens has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to Germany in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/alemania/#cuando-ir).

## Before you go to Germany

To enter Germany there are 6 things to sort out before you leave, starting with “Valid ID card (DNI) or passport”: they are all, with their deadlines, in [the Germany checklist](https://kokai.app/en/paises/europa/alemania/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and F · 230 V · 50 Hz; emergencies: 112 · 110 police.

In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it.

## What is nearby

- [Jugendfreizeitheim Farge](https://kokai.app/en/paises/europa/alemania/jugendfreizeitheim-farge/): Building in Blumenthal, Germany · 1.3 km
- [Freibad Neuenkirchen](https://kokai.app/en/paises/europa/alemania/freibad-neuenkirchen/): With kids · 2.5 km
- [Juliusplate](https://kokai.app/en/paises/europa/alemania/juliusplate/): Nature reserve in Lower Saxony, Germany · 2.5 km
- [Barrack Wilhelmine](https://kokai.app/en/paises/europa/alemania/dokumentations-und-lernort-baracke-wilhelmine/): Museums and art · 2.7 km
- [Eispohl, Sandwehen und Heideweiher](https://kokai.app/en/paises/europa/alemania/eispohl-sandwehen/): Nature reserve in Bremen, Free Hanseatic City of Bremen, Germany · 3.6 km

Distances are as the crow flies. Everything else is in [the Germany guide](https://kokai.app/en/paises/europa/alemania/).

## More in Germany: History

- [Berlin Wall](https://kokai.app/en/paises/europa/alemania/reststuck-der-berliner-mauer/): barrier constructed by the German Democratic Republic, enclosing West Berlin (1961–1989)
- [Lübeck](https://kokai.app/en/paises/europa/alemania/lubeca/)
- [Baden-Baden](https://kokai.app/en/paises/europa/alemania/baden-baden-2/)
- [Bamberg](https://kokai.app/en/paises/europa/alemania/bamberg-2/)
- [Neuschwanstein Castle](https://kokai.app/en/paises/europa/alemania/castillo-del-rey-loco/): castle in Bavaria, Germany, Europe
- [Cologne Cathedral](https://kokai.app/en/paises/europa/alemania/catedral-de-colonia/): Roman-Catholic cathedral in Cologne, Germany

Every Germany place under History, each with its season, is on [its page](https://kokai.app/en/paises/europa/alemania/historia/).

## Frequently asked questions

### What is Valentin submarine pens?

It is an architectural structure (U-Boot-Bunker Valentin in the local language) in Germany. It has articles in 11 Wikipedias, so it is not one of the busiest places in Germany: one to enjoy at a calmer pace.

### When is the best time to visit Valentin submarine pens?

April to October and December. In June there are 16 h 41 of daylight, and in December, 7 h 18.

### How do you get to Valentin submarine pens?

The nearest main airport is Hamburg Helmut Schmidt Airport (HAM), 109 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=53.217433%2C8.503266) opens the route on the map, and how to get around Germany is explained in [its country guide](https://kokai.app/en/paises/europa/alemania/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the Germany map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby.

### What else is around here?

Nearby you have [Jugendfreizeitheim Farge](https://kokai.app/en/paises/europa/alemania/jugendfreizeitheim-farge/), [Freibad Neuenkirchen](https://kokai.app/en/paises/europa/alemania/freibad-neuenkirchen/), [Juliusplate](https://kokai.app/en/paises/europa/alemania/juliusplate/). The rest is in [the Germany guide](https://kokai.app/en/paises/europa/alemania/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/161529403), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q466256), CC0. More about Valentin submarine pens on [Wikipedia](https://de.wikipedia.org/wiki/U-Boot-Bunker_Valentin). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).