# Jezioro Mamry – Upalty, Poland: what it is and when to go > Jezioro Mamry – Upalty is a dive site in Poland (Pozezdrze). Interests: Diving. The best time to visit is June to September. In June there are 16 h 53 of daylight, and in December, 7 h 07. 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/polonia/jezioro-mamry-upalty/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Dive site · Diving - **Where:** Poland - **Best time:** June to September. - **Nearest airport:** WMI Nowy Dwór Mazowiecki, 204 km as the crow flies - **Website:** [dive-links.com](http://www.dive-links.com/tauchplatz.php?id=2066) - **Coordinates:** 54.17841, 21.68052 ## What it is and where Jezioro Mamry – Upalty is a dive site in Poland (Pozezdrze). It is in [Pozezdrze](https://kokai.app/en/paises/europa/polonia/pozezdrze/), where this site lists 16 more places to see, 12 km from the centre. Its coordinates are 54.17841, 21.68052; the nearest main airport is Warsaw Modlin Airport (WMI, Nowy Dwór Mazowiecki), 204 km as the crow flies. How to get around Poland (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/polonia/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=54.178408%2C21.680521) - [Directions](https://www.google.com/maps/dir/?api=1&destination=54.178408%2C21.680521) It is one of the [Diving](https://kokai.app/en/paises/europa/polonia/submarinismo/) places in Poland. 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 Jezioro Mamry – Upalty is **June to September**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Better not | 7 h 39 | | February | Better not | 9 h 27 | | March | Better not | 11 h 29 | | April | Possible | 13 h 46 | | May | Possible | 15 h 45 | | June | Best time | 16 h 53 | | July | Best time | 16 h 25 | | August | Best time | 14 h 39 | | September | Best time | 12 h 25 | | October | Possible | 10 h 12 | | November | Better not | 8 h 10 | | December | Better not | 7 h 07 | In June there are 16 h 53 of daylight, and in December, 7 h 07. 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. When to go to Poland in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/polonia/#cuando-ir). ## Before you go to Poland To enter Poland there are 6 things to sort out before you leave, starting with “Valid Spanish ID card (DNI) or passport”: they are all, with their deadlines, in [the Poland checklist](https://kokai.app/en/paises/europa/polonia/#antes-de-salir). Currency: Złoty (PLN); plugs: Type C and E · 230 V · 50 Hz; emergencies: 112 · 997 police · 999 ambulance. 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 - [Jezioro Mamry – Campingplatz](https://kokai.app/en/paises/europa/polonia/jezioro-mamry-campingplatz/): Dive site · 902 m - [Arabella](https://kokai.app/en/paises/europa/polonia/arabella/): Shipwreck · 1.9 km - [Jezioro Mamry - Archäologische Siedlung](https://kokai.app/en/paises/europa/polonia/jezioro-mamry-archaologische-siedlung/): Dive site · 3.2 km - [Sztynort Palace](https://kokai.app/en/paises/europa/polonia/palac-w-sztynorcie/): History · 5.1 km - [Węgorzewo Castle](https://kokai.app/en/paises/europa/polonia/zamek-w-wegorzewie/): History · 5.3 km Distances are as the crow flies. Everything else is in [the Poland guide](https://kokai.app/en/paises/europa/polonia/). ## More in Poland: Diving - [SS General von Steuben](https://kokai.app/en/paises/europa/polonia/ss-general-von-steuben/): German luxury passenger liner - [ORP Wicher](https://kokai.app/en/paises/europa/polonia/wicher-szczatki-wraku/): 1928 Wicher-class destroyer - [ORP Grom](https://kokai.app/en/paises/europa/polonia/orp-grom-ii/): 1950 Project 30bis-class destroyer - [ORP Wicher](https://kokai.app/en/paises/europa/polonia/orp-wicher-ii/): 1949 Project 30bis-class destroyer - [ORP Kujawiak](https://kokai.app/en/paises/europa/polonia/orp-kujawiak/): Polish submarine - [Słupsk Bank](https://kokai.app/en/paises/europa/polonia/slupsk-bank/): Coastal bank in the Baltic Sea Every Poland place under Diving, each with its season, is on [its page](https://kokai.app/en/paises/europa/polonia/submarinismo/). ## Frequently asked questions ### What is Jezioro Mamry – Upalty? It is a dive site in Poland. ### When is the best time to visit Jezioro Mamry – Upalty? June to September. In June there are 16 h 53 of daylight, and in December, 7 h 07. ### How do you get to Jezioro Mamry – Upalty? The nearest main airport is Warsaw Modlin Airport (WMI), 204 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=54.178408%2C21.680521) opens the route on the map, and how to get around Poland is explained in [its country guide](https://kokai.app/en/paises/europa/polonia/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Poland 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 [Jezioro Mamry – Campingplatz](https://kokai.app/en/paises/europa/polonia/jezioro-mamry-campingplatz/), [Arabella](https://kokai.app/en/paises/europa/polonia/arabella/), [Jezioro Mamry - Archäologische Siedlung](https://kokai.app/en/paises/europa/polonia/jezioro-mamry-archaologische-siedlung/). The rest is in [the Poland guide](https://kokai.app/en/paises/europa/polonia/). Data from [OpenStreetMap](https://www.openstreetmap.org/node/663871170), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).