Germany and Austria. Lake Constance (Circular Route). Season: June - August.

🚲 Start in Konstanz, finish in Friedrichshafen. Approximately 46–52 km, pure riding time about 3.5–4.5 hours, with only a small elevation gain — around 180–260 m. The surface is mostly excellent: separate Bodensee-Radweg cycle paths, asphalt along the shore, short sections on quiet local streets and compact gravel near natural areas. Main stops along the way: the Staad district with lake views, the Pfahlbauten museum in Unteruhldingen, and the old town of Meersburg. If you want to shorten the urban departure, you can skip riding through central Konstanz and head straight to the lakeside cycle route toward Mainau; on Mainau Island it is usually more convenient to leave the bicycle near the entrance area and continue on foot, because it is a park area with its own visiting rules. Dingelsdorf, Unteruhldingen, and Meersburg are convenient places for water and food breaks: in summer cafés and bakeries are often open, but in hot weather it is better to carry at least 1.5–2 liters of water per person. Overnighting makes sense in Friedrichshafen near the promenade or slightly away from the center, where bicycle storage is usually easier. Road nuances: in summer the section between Mainau, Unteruhldingen, and Meersburg can be very busy, so it is better to start early; in some places there are pedestrian tourists on shared paths, and near the Meersburg promenade you should slow down. The day is realistic for an average cycle tourist because the route follows the famous circular Bodensee-Radweg almost the whole way, the climbs are modest, and there are many services and stops.

🚲 Start in Friedrichshafen, finish in Lindau. Approximately 32–38 km, pure riding time 2.5–3.5 hours, elevation gain about 90–160 m. The surface is very comfortable: promenades, cycle paths by the shore, urban bike lanes, and short sections on quiet roads between resort villages. Main stops: Friedrichshafen castle and harbor, the Eriskircher Ried nature area, and the Wasserburg peninsula before Lindau. This is one of the easiest days of the tour: you can have a relaxed breakfast, stop by the tourist office or a workshop, buy an inner tube, and then continue calmly along the shore. Fischbach, Langenargen, Kressbronn, and Wasserburg are convenient for topping up water and food; along the route there are many bakeries, supermarkets, and kiosks near the beaches. In Lindau it is best to stay either on the island section near the station and harbor, or in Reutin if you need easy access to rentals and trains. Road nuances: on warm July and August days the promenades can have heavy traffic from families and leisure cyclists, so average speed drops; with a westerly wind, the section toward Lindau may feel a little longer than it looks on the map. The day is realistic for a regular tourist because it is short, almost flat, and leaves time for swimming, sightseeing, and minor bike service.

🚲 Start in Lindau, finish in Bregenz. Approximately 24–30 km, pure riding time 2–3 hours, elevation gain about 80–140 m. The surface is almost entirely asphalt: promenade, well-marked cycle paths around the harbor and along the shore, and in places dense urban traffic at the junctions of resort areas. Main stops: Lindau harbor with the lion and lighthouse, the crossing into Austria along the shore, and the Bregenz promenade; if you want, you can add an ascent on the Pfänderbahn without the bike, leaving it in parking or at the hotel. Along the way, Lochau and the Bregenz city promenade are convenient for coffee and water stops. Overnighting is best in central Bregenz or near the lake, so you can stroll to the festival stage in the evening and return calmly to the route in the morning. Road nuances: this is a very safe and short day, but around the border and promenade there are many pedestrians, scooters, and families with children; in the evening the waterfront can be especially crowded. If a group is riding e-bikes, this is a good day for charging and checking brakes before the next part of the circuit. The day is realistic for an average cycle tourist because the distance is small, the terrain is gentle, and logistics are as simple as possible.

🚲 Start in Bregenz, finish in Konstanz. Approximately 59–66 km, pure riding time 4.5–5.5 hours, elevation gain about 120–220 m. This is the longest, but still tourist-friendly day. The surface is good: separate cycle paths, embankments and promenades by the Rhine delta, then calm coastal sections with smooth asphalt. Main stops: the protected landscapes of the Rheindelta at the mouth of the Rhine, Rorschach as a convenient coffee break, and long open lake views on the way to Romanshorn. Although the route passes through Switzerland, this is a natural part of the classic circuit around Bodensee; it is better to ride clockwise, because the lake stays on the view side and navigation is clearer. Water and food are easy to refill in Bregenz, Altenrhein, Rorschach, Arbon, and Romanshorn; in hot weather it is worth starting early because there are not many shady sections. Overnighting is again in Konstanz, where it is convenient to do evening service, return a rented bike later, or stay overnight before the final German section. Road nuances: in summer there can be strong headwinds or crosswinds on the embankments; after rain, the open sections near the delta and reed areas are less comfortable. The day is realistic for an average cycle tourist because it is long but almost without relief, and the surface and infrastructure are very good throughout.

🚲 Start in Konstanz, finish in Radolfzell. Approximately 41–48 km, pure riding time 3–4 hours, elevation gain about 120–190 m. The surface is mixed but comfortable: urban cycle paths on the way out of Konstanz, then flat sections along the Untersee, with promenades in places, quiet rural roads in others, and small gravel stretches. Main stops: Reichenau Island with its monastic landscape and gardens, Allensbach, and the finish in Radolfzell with its historic center and access to the water. This day has a calmer, more unhurried character: less resort bustle, more rural views, gardens, and birds by the water. Breaks for water and food are convenient in Konstanz before departure, then on Reichenau and in Allensbach; in hot weather the long open sections of the island are quite sunny. Overnighting is best in Radolfzell or near the station if you want a backup option to leave by train in case of fatigue. Road nuances: part of the paths are shared with pedestrians, and on the island there may be local agricultural traffic; after rain, the gravel inserts require a slightly more careful pace. The day is realistic for an average cycle tourist thanks to the moderate distance, low elevation gain, and calm navigation.

🚲 Start in Radolfzell, finish in Konstanz. Approximately 22–29 km, pure riding time 1.5–2.5 hours, elevation gain about 70–120 m. The surface is convenient: asphalt cycle paths, shoreline sections, and short urban links. Main stops: the Radolfzell promenade, Allensbach, and quiet viewpoints over the Untersee as you approach Konstanz. This is an easy final day that leaves time for a relaxed breakfast, swimming, returning a rental bike, taking the train home, or spending one more night in Konstanz. Water and food are easy to refill almost throughout; there are many services, but on Sunday morning some shops may be closed, so it is better to fill your bottle before starting. Overnighting, if needed, is again in Konstanz. Road nuances: on the approach to Konstanz there are once again more pedestrians and urban traffic, so it is better to ride the last kilometers calmly and without racing. The day is realistic for an average tourist because it is short, completes the circuit without overload, and works well even after six days in the saddle.