I love beaches in Taiwan, even though they aren't best maintained, but they are raw rough calm and beautiful.
When I was in Taiwan, it happened to be the two-week East Asia short rainy season, so it wasn't as sunny as I thought, yet warm, warmer than Belgium summer.
The guesthouse I stayed offers free bicycles to use, which was quite convenient to go around. Taitung is such a small town, guesthouse owner didn't give me key for the bicycle, probably you can just leave it, don't have to lock it in Taitung.
I miss this beach