Bonn is arranged around the Rhine. The city turns its face to the water, the streets bend to follow the bank, and the towpath runs flat on both sides for as far as a day's legs will carry you, which is why people here ride bikes to get from one lawn to the next rather than for sport. Two small car ferries and a chain of free public gardens turn that path into a day out: you assemble lunch near the Münster in the morning, ride out along one bank, cross the water, and come home down the other.
Two ways to get a bike
The choice only matters if the party is mixed, but then it matters a great deal. Radstation Bonn am Hauptbahnhof (city centre, Quantiusstraße 4-6) stands two minutes from the platforms and is staffed from 6am to 10.30pm on 362 days of the year. It is the one place here that rents pedelecs, tandems and child trailers rather than a rack of identical city bikes, which is the whole argument for using it: a group whose fitness spans three decades can be levelled out by putting the slowest rider on an electric machine. Day hire sits in the middle price band, with pedelecs and tandems dearer. If you want several bikes at once, or anything unusual, telephone ahead. Arriving as a party of six and hoping is how people end up riding whatever is left in the rack.
Welo Bikesharing (Bonn and the wider Rhein-Sieg district) is the other answer, and for a one-way ride it is the better one. Since September 2025 a single system has covered the city and the whole surrounding district, so you can ride out to Königswinter, Bad Honnef or Niederkassel, leave the bike where you stop, and come back by train or bus instead of pedalling the return leg into a headwind. Registration is free, a €1 verifying deposit becomes ride credit, and ending a ride in the outer yellow zone adds €1. The group constraint is simple: one account per rider, so everyone needs a phone of their own. Bikes are dense around the station and the central hubs and thin out the further from the middle you go.
Where the picnic comes from
Assembly happens at Bonner Wochenmarkt (Münsterplatz, city centre), the open-air market that fills the square in front of the Münster Monday to Friday from 8am to 6pm and on Saturday until 5pm. Cheese, cured meat, bread, fruit and flowers sit within a few metres of one another, and with more than three people the sensible tactic is to split up, take a stall each and meet at the edge of the square rather than queue as a block. Two can put together a good lunch for comfortably under €20. From the square it is about ten minutes' easy riding down to the river, so buy late enough that the bread is still worth eating and early enough to beat the lunch crowd to the better lawns.
If the weather has turned by the time you reach the water, none of this is wasted. Every stop below has a roof or an awning somewhere near it, and the food keeps.
Leaving town on the left bank
Ride to the river and the first stop is Alter Zoll (city centre, above the Rhine), the old bastion of the city's fortifications, now a lawn on top of a wall with the highest free view over the water in the centre. The grass is open all year and costs nothing. The beer garden below seats around 250 on benches and takes group bookings, but it is a summer, fair-weather operation that has just come through a renovation, so check it is actually serving before you build lunch around it. A few minutes further along the bank, Rheinpavillon Bonn (city centre riverside) is the most useful stop on the urban stretch precisely because it works both ways: sit on the terrace or the panorama level whatever the sky is doing, or take a flammkuchen from the counter and eat it on the grass twenty metres away. It opens Monday to Friday from noon to 6pm and at weekends from 11am.
The promenade itself is being rebuilt in stages. The Josefstraße to Alter Zoll section reopened in May 2026 with a protected bike lane, which is the pleasant part; the Josefstraße to Rosental phase is still under way and will put you on a short signposted diversion. It is not difficult, but it is not the moment to be riding three abreast.
Why most picnics end up in the Rheinaue
Freizeitpark Rheinaue (left bank, between the centre and Bad Godesberg) is the default picnic answer in this city and the anchor of any ride along the stretch. It is free, unfenced and large enough to absorb any size of group without booking anything, with a lake, boat hire and enough distance between the lawns that you are not eating in someone else's afternoon. Two rules are worth knowing before you arrive with charcoal. Grilling is allowed only in the marked barbecue zone and only with a standing grill; the zone works first come, first served and cannot be reserved, so a summer Saturday means arriving early or accepting cold food. Grilling is explicitly banned in the Japanese, Rose, Blind and German ornamental gardens, which are the prettiest corners and the most tempting. On the third Saturday of the month from April to October the park also runs its flea market, 8am to 6pm, which is either a bonus or a reason to ride a few hundred metres further before unpacking.
When the rain comes in, and on this river it does, Parkrestaurant RheinAue (inside the park) is the only proper kitchen within the grounds. It is barrier-free, the beer garden absorbs walk-in groups, and there is a banquet and catering service for larger private parties. It closes on Mondays, opens from noon Tuesday to Friday, from 11am on Saturdays and 11am to 6pm on Sundays and holidays.
South to Insel Grafenwerth and the Rolandsbogen
The southern run is the classic day, about 25km out, though the ferry means you need not ride it twice. Follow the left bank past Bad Godesberg and the Kastaniengarten at the Rheinhotel Dreesen (Bad Godesberg, on the bank) appears roughly halfway to the crossing. It is the grand-hotel version of a Rhine stop: chestnut shade and full table service, open April to September. Cycling kit is fine at the garden tables and less so inside, and you should book ahead for six or more. Coffee and cake here is by some distance the cheapest way to buy the view.
At Mehlem the Rheinfähre Königswinter (Bonn-Mehlem to Königswinter) does the thing that turns a there-and-back into a loop. There is no booking, you roll straight on, and the eight-minute shuttle takes as many bikes as turn up. It costs €3 per bike including the rider, and from 10 July to 11 December 2026 cyclists holding a valid transit ticket cross free. Boats run from about 5.15am on weekdays and 7.45am at weekends until 9.45pm, water levels permitting.
Carry on upstream on the right bank and you reach Insel Grafenwerth (Bad Honnef), a free public island of lawns and old trees and the natural turning point of the ride. Groups are welcome on the grass, there is a pool for anyone who brought a towel, and the island's own beer garden seats large tables without booking, Monday to Saturday 3pm to 10pm, from noon on Sundays and holidays, weather permitting. On 5 September 2026 the free R(h)einspaziert open-air festival lands on the island, worth planning around in one direction or the other depending on whether you want the crowd.
Riders with more in their legs can add Restaurant am Rolandsbogen (clifftop above Rolandseck, left bank), the southernmost point on this route worth the effort and the longest view down the valley. It opens Wednesday to Sunday from noon and closes Monday and Tuesday. Reserve, and be honest about the gradient. It is a stiff climb, or a push up from the valley floor, and Rolandseck station sits at the bottom of the hill for anyone whose legs or weather have run out.
North to the Sieg mouth
The northern loop is shorter, emptier and the better choice on a hot afternoon. Ride out through Graurheindorf to the Rheinfähre Mondorf (Bonn-Graurheindorf to Niederkassel-Mondorf), currently the nearest crossing to the closed Nordbrücke and therefore busier with cyclists than the map suggests. No reservations, bikes and foot passengers board first, a couple of euros each, daily from roughly 6am to 9pm. The one thing to check before you commit to a one-way route is the gauge: the service suspends when the Bonn water level reaches 6.20 to 6.40 metres, and a loop planned around a ferry that is not running becomes a very long ride back.
On the far side, a few minutes from the landing along the path called Auf dem Eiländchen, Naturschutzgebiet Siegmündung (Niederkassel-Mondorf, where the Sieg meets the Rhine) is around 150 hectares of protected floodplain and the quietest picnic on this list, twenty minutes north of the centre. Access is free and open on the marked paths. It is a reserve rather than a park: stay on the tracks, keep dogs leashed, and treat it as a place for two or four people rather than a party of fifteen. The 64km Sieg cycle route also starts here, which is the obvious next day out if this one goes well.
The sunny bank home through Beuel
The right bank faces west, so it holds the light after the old town has gone into shade, and that is the whole reason the drinking happens over here. Bikini Beach Bonn (Oberkassel, Karl-Duwe-Straße 1) is the loud version: sand, beach volleyball, DJ open-airs and private event hire, reached on foot or by bike straight off the promenade. The season runs Easter to autumn, with the 2026 opener confirmed for the May Day weekend. Drinks, bowls and burgers are mid-priced and ticketed open-airs start around €20. It is built for groups and it is not the place for a quiet lunch.
A little upstream, Beueler Bahnhöfchen (Beuel, Rheinaustraße 116) is a former Bröltalbahn station turned all-day terrace, open noon to midnight and from 9am at weekends, with a €15 Sunday breakfast buffet. The terrace is big, the staff are used to group bookings and festival crowds, and bikes park on the promenade; it is the one address here that stays useful long after the picnic light has gone. A few doors along and considerably less polished, Rheinlust Bonn-Beuel (Beuel, Rheinaustraße 134) is the local counterweight to the beach bars: regional cooking, a well-attended Sunday breakfast buffet, explicitly set up for families and groups, walk-in from the promenade. Two practicalities. It is cash only, so bring notes, and the underground garage at the Brückenforum next door is the sensible bike-and-luggage drop. Staff speak English.
Practical notes for the day
Ride out on the left bank in the morning and come home on the right in the evening. The shade and the sun fall that way round, and it puts a beer garden at the end of the day rather than the middle. Build the day around the ferry timetables rather than your own: the Königswinter boat runs until 9.45pm and Mondorf until about 9pm, and if the river is high, Mondorf may not run at all, so check the Bonn gauge before planning a route you cannot ride back. For a one-way day, Welo lets you abandon the bike in Königswinter, Bad Honnef or Niederkassel; a rented Radstation bike has to come home with you.
Carry cash. Market stalls, ferry crews and Rheinlust all expect notes and coins, and the sums are small: €3 for the southern crossing, a couple of euros for the northern one. A realistic budget for two is roughly €20 for the market picnic, €10 to €20 for bikes depending on where you get them, €6 for ferries, and whatever you spend at the beer garden on the way back. A whole day on the river is comfortably possible under €60 a head, and under €30 if you eat only what you carried. Bring water, because the drinking fountains are not where you want them, and a lock even for a share bike.
Timing is the thing most people get wrong. The barbecue zone in the Rheinaue fills by late morning on warm Saturdays, the Sunday breakfast buffets in Beuel need an early start, and the Rolandsbogen kitchen is shut Monday and Tuesday. If you are staying in the city rather than riding in for the day, the Bonn hotel search covers both banks, and the right bank puts you closer to the evening terraces and the sun. For everything off the water, museums, the old town, where to eat when it rains for three days, see the wider Bonn guide.
