Certainly! Ryanair offers multi-city flights that allow travelers to book flights with multiple destinations in a single itinerary. This option is convenient for those who wish to visit multiple cities without having to book separate one-way flights.

To book a multi-city flight with Ryanair, you can follow these steps:

1. Visit the Ryanair website or use their mobile app.
2. On the homepage, enter your departure city in the "From" field.
3. Instead of selecting a return flight, click on the "Multi-city" or "Multiple destinations" option.
4. Enter your first destination in the "To" field, along with the desired travel dates.
5. Click on the "Add Another Flight" button to add additional destinations.
6. Enter the next destination and travel dates, and continue this process until you have added all the desired cities.
7. Once you have entered all the flights and dates, click on the "Search" or "Find Flights" button.
8. You will be presented with a list of available flights for each leg of your journey. Review the options and select the flights that best fit your itinerary.
9. Follow the prompts to complete the booking process, providing passenger details, payment information, and any additional services you may require.

It's important to note that Ryanair multi-city flights are subject to availability, and the pricing may vary depending on the destinations and travel dates you choose. It's recommended to book your flights in advance to secure the best deals and availability.

If you have any specific questions or need further assistance, feel free to ask!