Je ne pense pas qu'il y ait la 5G en Islande, déjà parfois en 3G c'est limite.
Sinon, il faut bien se renseigner avant de faire voler son drone en Islande :
https://guidetoiceland.is/travel-info/flying-drones-in-iceland
Quelques extraits :
As of 2016, the recreational use of drones is banned at all National Parks in Iceland, those are: Vatnajökull National Park, Snæfellsjökull National Park and Þingvellir National Park.
Please note that Vatnajökull National Park is very large, and new areas are incorporated into it regularly. For example, Skaftafell Nature Reserve and the Jökulsárlón Glacier Lagoon are part of this park, thus drones are forbidden at both.
As well as within all national parks, the use of drones at many of Iceland's most popular attractions is now prohibited. Due to the increasing number of visitors as well as drone ownership, these restrictions have been put in place to preserve the visitor's experience which would undoubtedly be hampered if many drones were buzzing around.
These attractions include the famous waterfalls Gullfoss, Seljalandsfoss and Skógafoss, as well as Reynisfjara Beach. To find out whether the use of drones is prohibited, look out for yellow signs that feature a picture of a drone with a red line through it, as well as the words "DRONES ARE FORBIDDEN". If you are not in a National Park and you cannot see one of these signs, you can assume you can fly your drone within the government guidelines mentioned above.
Guests to the Westfjords could take footage of such locations as the beautiful Arnarfjörður fjord or Rauðisandur beach. However, flying a drone at Látrabjarg cliffs is forbidden, as to not disturb the birdlife there, and restrictions of drone usage by the beautiful Dynjandi waterfall have been put in place, to ensure the peace and quiet in the area.