Maar on Arc & Digitalhttps://www.eifel42.dev/tags/maar/Recent content in Maar on Arc & DigitalHugoen-USWed, 24 Jun 2026 00:00:00 +0000Ulmener Maarhttps://www.eifel42.dev/post/ulmener-maar/Sun, 21 Dec 2025 00:00:00 +0000https://www.eifel42.dev/post/ulmener-maar/Ulmener Maar — short hikes, a connecting tunnel to Jungfernweiher and birdwatching opportunities.