According to Trip.com data, these 3 restaurants are close to Hydrangea Garden at Nakagoniwa Dam Lakeside Park and have great user reviews:
1. Onyado Fukuchiyo, 8.25 km from Hydrangea Garden at Nakagoniwa Dam Lakeside Park
2. Ryoshi no Yakata, 9.74 km from Hydrangea Garden at Nakagoniwa Dam Lakeside Park
3. Daifukumaru Direct Crab Sales Hakozaki, 9.84 km from Hydrangea Garden at Nakagoniwa Dam Lakeside Park