At Hotel Route-Inn Nagahama Inter, there are four types of rooms available. The Comfort Double Room and Comfort Double Room with Small Double Bed can accommodate 2 adults and 1 child, while the Comfort Twin Room can also accommodate 2 adults and 1 child. The Comfort Single Room is for single occupancy only. Smoking is not allowed in any of the rooms. The sizes of the rooms range from 129 sqft to 183 sqft and the beds provided are either a Queen size, Double, or Twin bed.

Guests at Hotel Route-Inn Nagahama Inter can spend their time enjoying the leisure amenities offered at the hotel. They can indulge in the delicious cuisines offered at the onsite restaurants, namely 花茶屋（本館）and Restaurant NAGOMI（別館 GrandAnnex）. These restaurants offer a range of Japanese and European dishes to suit different tastes.

The provided data does not mention any specific details about other leisure amenities available at the hotel. Therefore, it can be assumed that the hotel may not have any additional leisure facilities such as swimming pools, fitness centers, or spa services.

However, guests can still make the most of their time by exploring the local area and visiting nearby attractions, as the hotel's location at Nagahama Inter provides easy access to various tourist spots.

Yes, the Hotel Route-Inn Nagahama Inter has on-site restaurants. The main building features a restaurant called 花茶屋 (Hanachaya) offering Japanese cuisine, while the separate building, known as GrandAnnex, has a restaurant called Restaurant NAGOMI offering European cuisine.