Salou is a beautiful coastal town in Spain known for its stunning beaches, vibrant nightlife, and exciting attractions. Here's an ideal 10-day itinerary for you to make the most of your time in Salou:

Day 1: Arrival in Salou

• Check into your accommodation and relax after your journey
• Take a leisurely stroll along Llevant Beach and enjoy the sunset
• Have dinner at a local restaurant and try some delicious Spanish cuisine

Day 2: PortAventura World

• Spend the day at PortAventura World, a popular theme park with thrilling rides and shows
• Enjoy the different themed areas like Mediterranean, Polynesia, China, Mexico, and the Wild West
• Have dinner at one of the park's restaurants or head back to Salou for a meal

Day 3: Beach Day

• Relax on the beach and soak up the sun at Playa de Ponent
• Try some water sports like jet skiing or paddleboarding
• Enjoy a seafood lunch at a beachfront restaurant

Day 4: Tarragona Day Trip

• Visit the nearby city of Tarragona, known for its Roman ruins and historic sites
• Explore the Roman amphitheater, the old town, and the Cathedral of Tarragona
• Have dinner at a local restaurant in Tarragona before heading back to Salou

Day 5: Aquopolis Water Park

• Spend the day at Aquopolis Water Park, a fun-filled water park with slides and pools
• Relax in the sun or take a dip in the wave pool
• Enjoy a refreshing ice cream or snack at the park's cafes

Day 6: Cultural Day

• Visit the Torre Vella, a historic tower with panoramic views of Salou
• Explore the Passeig Jaume I promenade and admire the sculptures and fountains
• Have dinner at a traditional Spanish tapas bar in the town center

Day 7: Relaxation Day

• Treat yourself to a spa day at one of Salou's luxury spas
• Enjoy a massage or facial treatment to unwind and rejuvenate
• Have a leisurely dinner at a seaside restaurant and watch the sunset

Day 8: Cambrils Day Trip

• Take a day trip to the charming fishing village of Cambrils
• Explore the old town, visit the fishing port, and stroll along the promenade
• Enjoy a seafood lunch at one of the local restaurants by the beach

Day 9: Shopping and Souvenirs

• Spend the day shopping for souvenirs and gifts at the local markets and shops
• Pick up some traditional Spanish items like ceramics, olive oil, or wine
• Have a farewell dinner at a cozy restaurant in Salou

Day 10: Departure

• Enjoy a final breakfast in Salou before checking out of your accommodation
• Take one last walk along the beach and soak in the beautiful views
• Depart for your next destination with wonderful memories of your time in Salou

I hope this itinerary gives you a good mix of relaxation, adventure, and cultural experiences during your 10 days in Salou! Let me know if you need any more recommendations or tips.