Morning: Exploring Heidelberg Castle
Start your morning with a leisurely visit to Heidelberg Castle. The castle’s crumbling yet majestic ruins offer an enchanting glimpse into centuries past. Wander through the castle’s grand courtyard, visit the Pharmacy Museum, and stand in awe before the Great Tun, one of the largest wine barrels in the world. The view of the Neckar River winding through the valley below is absolutely magical, especially with the morning mist still lingering over the water.

Hidden Gem: If you wander behind the castle’s gardens, you’ll find the Hortus Palatinus, an elaborate, terraced garden that’s often overlooked by visitors. It’s a serene spot for a quiet moment together, surrounded by meticulously arranged greenery and secret pathways.

Lunch:
Enjoy lunch at a charming little café in the old town, where you can savor some traditional German dishes, such as homemade spätzle or a hearty schnitzel. The café’s warm atmosphere is perfect for an intimate meal, and it’s just a stone’s throw from the castle.

Afternoon: Neckar River Cruise
In the afternoon, head down to the river for a relaxing Neckar River cruise. These leisurely boat rides offer the best views of Heidelberg’s old town, the castle above, and the lush green hills that surround the city. As you sail down the river, the gentle breeze and soft lapping of the water make for a wonderfully romantic setting. Make sure to have a glass of local Riesling in hand—it’s the perfect pairing for the views.

Dinner:
Dine at a riverside restaurant where the glittering reflections of the city lights dance on the water. The combination of fine German cuisine and breathtaking views of the castle illuminated at night sets the perfect mood for an intimate dinner.

Drinks:
After dinner, wander over to Bent Bar, a hidden bar tucked away in a quiet alley of the old town. This cozy, dimly lit spot serves craft cocktails that blend local ingredients with international flair. The atmosphere is intimate and relaxed, perfect for lingering over drinks late into the evening.

Morning: Heidelberg University & Student Jail
Start your day with a visit to the historic Heidelberg University, one of the oldest universities in Germany. Wander through the stunning courtyard and visit the University Library, which holds centuries of academic history. One of the most unique attractions here is the Studentenkarzer (Student Jail), where mischievous students were once held for minor offenses like public drunkenness or pranks. The graffiti-covered walls tell amusing stories from centuries past.

Lunch:
Enjoy a leisurely lunch at a traditional German brasserie near the university. Try a local delicacy such as Flammkuchen, a thin, crispy pizza-like dish topped with cream, onions, and bacon.

Afternoon: Schwetzingen Palace Gardens
For a relaxing afternoon, take a short drive to Schwetzingen Palace, a lesser-known gem just outside Heidelberg. The palace gardens are a masterpiece of landscaping, with perfectly manicured lawns, a stunning mosque, and tranquil lakes. Stroll through the gardens and take in the serene atmosphere before heading back.

Dinner:
Wrap up your day with dinner at an elegant restaurant, enjoying a fine meal paired with a glass of local Riesling. Soak in the last moments of the city's charm before beginning your journey home.

Morning: Philosopher’s Walk
On Sunday, take a romantic walk along the Philosophenweg, a scenic trail that snakes its way up the hillside opposite the castle. This walk offers unparalleled views of Heidelberg’s old town, the Neckar River, and the castle perched above. The path is dotted with benches, perfect for sitting quietly together and enjoying the panoramic views. If you walk a bit further, you’ll come across the Thingstätte, a hidden amphitheater built by the Nazis in the 1930s, now a haunting, overgrown relic of history.

Lunch:
Stop at a local café along the river for a light, fresh lunch—perhaps some German sausages or a crisp salad with local produce—before continuing your exploration.

Afternoon: The Old Bridge
Spend your final few hours in Heidelberg exploring the Alte Brücke, or Old Bridge. This iconic stone bridge, built in the 18th century, stretches gracefully over the Neckar River and connects the old town to the Philosophers' Walk. Take a leisurely stroll across, pausing to admire the statues that line the bridge and the sweeping views of the river. Be sure to take a photo by the famous Heidelberg Bridge Monkey, a quirky bronze statue that brings good luck to visitors who touch it.

As the weekend draws to a close, head back to your car and enjoy the scenic drive home to Luxembourg. You’ll arrive in just under three hours, with memories of castles, rivers, and romance still fresh in your minds.