

週末は川にそって散歩するのが好きです。
この道にそってまっすぐ行くと、駅があります。
海岸にそって走るバスはありますか。
"にそって" is in the lesson "Adverbs 3" (Level 35), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.