Here are a few suggestions for your next trip from Radolfzell

In 2 hours, you can reach Schaffhausen, Meßkirch, Menningen-Leitishofen, Rottweil, Friedrichshafen Ost, Herrenberg, Stuttgart-Vaihingen, Biberach(Riß), Steinach(Baden), Gengenbach...

In 3 hours, you can reach Karlsruhe, Ringsheim/Europa-Park, Bruchsal, Langenau(Württ), Sontheim-Brenz, Sinzheim Nord, Baden-Baden Rebland, Sinzheim, Ergenzingen, Ulm Hbf...

In 4 hours, you can reach Basel, Stuttgart, Mannheim, Freiburg, Lahr(Schwarzw), Herbolzheim(Breisg), Emmendingen, Wiesloch-Walldorf, Heidelberg Hbf, Weinheim(Bergstr)Hbf...

In 5 hours, you can reach Frankfurt am Main, Wiesbaden, Mainz, Müllheim(Baden), Frankfurt(M) Flughafen Fernbf, Siegburg/Bonn, Bingen(Rhein) Hbf, Bensheim, Darmstadt Hbf, Rheinfelden(CH)...

In 6 hours, you can reach Köln, Riehen, Köln/Bonn Flughafen, Koblenz Hbf, Friedberg(Hess), Gießen, Marburg(Lahn), Andernach, Remagen.

In 7 hours, you can reach Düsseldorf, Bonn, Treysa, Wabern(Bz Kassel), Kassel-Wilhelmshöhe.

In 8 hours, you can reach Essen, Dortmund, Hannover, Duisburg, Gelsenkirchen, Oberhausen, Wanne-Eickel Hbf, Recklinghausen Hbf, Göttingen.

In 9 hours, you can reach Münster, Rheine, Lingen(Ems), Celle, Uelzen, Lüneburg.

In 10+ hours, you can reach Hamborg, Hamburg-Harburg, Meppen, Papenburg(Ems), Leer(Ostfriesl), Emden Hbf.