Day01, Arrive Chengdu, pick you up at Chengdu A'port or Chengdu Train Station and drive about 2.0 hours and check in Xiao Jiuzhai hostel where close to the top of Tiantaishan Mt.Tiantai, in the evening hiking up about 20 minutes to Zhengtiantai area for watching one of the lighting or fire insects, firelies glow worm, as well as watching glow worm around Xiao Jiuzhai area.(D).
Day02, Full day sightseeing in Tiantaishan at the day time, and in the evening hiking up about 20 minutes to Zhengtiantai area for watching firelies glow worm, as well as watching glow worm around Xiao Jiuzhai area, or trekking down to Dengle'an area and Xiaojiawan area for watching firefly glowworm, enjoy the fireflies' luminescent lights in the darkness, overnight in Xiao Jiuzhai hostel.(B/L/D)
Day03, After b'fast, drive back to Chengdu and drop off at Chengdu A'port or Chengdu Train station.(B)

Quotation: 245USD/p.p.
Minimum 2 persons in your party.

Included: local style meals marked, accommodation in marked hostel (2persons share one standard room) or similar, entrance fee for sightseeing, transfers and transportation by private car as marked, park bus tickets if necessary, local private English speaking guide service,  tour body insurance.
Excluded: airticket and train tickets, any other service not included above.

Better time to watch fireflies: late Apr-earlier Oct, best May-Aug

In this tour, you can extend your trip to Bifengxia Panda Base (one day more), as well as Chengdu panda Base visiting. Of course this tour could be tailored to meet your needs.