Fukuoka Recommendations

Traveling to Fukuoka, Japan, for a few days soon and looking for all the recommendations! Ideally, I'd love places that are walkable from the Tenjin or Hakata area, but I'm also happy to take the subway or buses. I’m really into active things and exploring local history and culture. I'd also love any must-try restaurants, especially local specialties or hidden gems. Also, I'd appreciate any advice on what clothes to pack for this time of year, especially considering Fukuoka's late spring/early summer weather (heat, humidity, and possible rain). Thanks in advance for any suggestions!