We are listing
good places to go diving, as per the acrostic.
Small taste post-Christ and an article, confused is panda. (7)
SIPADAN (sip + AD + an / ISPANDA*). Sipadan is a Malaysian island and one of the world's top diving destinations.
Charles' gateway monument messed up Chad's WinRAR. (11)
DARWIN'S ARCH (Charles Darwin + the thing in St Louis / CHADSWINRAR*). This is a natural arch formation near Darwin Island in the Galapagos.
Unreaching paradox person and curious alpha backed out of a Thai bone zone. (7)
ZENOBIA (Zeno + bi + a / thAIBONEZone<). The Zenobia was a Swedish ferry wrecked off Cyprus, now a popular place for diving.
Big melancholic opening misinterpreted by Leo, a rebel thug. (13)
GREAT BLUE HOLE (great = big etc.; LEOAREBELTHUG*). The Great Blue Hole, in Belize, is just what the name implies.
Alternative to death, brother to fraternity. (7)
LIBERTY ("give me liberty or give me death!" / "liberté, égalité, fraternité"). The USAT Liberty was wrecked in Bali and is a popular diving site.