Other issues of Palau enjoying good philatelic interest include:
- A sheet of forty stamps released on May 22, 1986 in the World of Sea and Reef theme. The set (Scott #103a-an) catalogs for around $40 MNH or used. The designs show spear fisherman, native raft, sailing canoes, Rock Islands sailfish, Inter-island boat and flying fish, bonefish, common jack, mackerel, sailfish, barracuda, triggerfish, dolphinfish, spear fisherman, grouper, manta ray, marlin, parrotfish, wrasse, red snapper, herring, dugong, surgeonfish, leopard ray, hawksbill turtle, needlefish, tuna, octopus, clownfish, squid, grouper, moorish idol, Queen Conch starfish, squirrelfish, starfish and sting ray, lion fish, angel fish, butterfly fish, spiny lobster, mangrove crab, tridacna, and moray eel. The set is considered the most recognized stamps of Palau and is very collectible. Palau is actively engaged in regional environmental initiatives and was the world’s first to create a shark sanctuary covering 230,000 square miles of its waters.
- A long set of eighteen stamps released between 1991 and 1992 in the Birds theme. The set (Scott #266 to #283) catalogs for around $35 MNH or used. The designs show Palau bush-warbler, common moor-hen, banded rail, Palau fantail, mangrove flycatcher, purple swamphen, Palau fruit dove, great crested tern, Pacific reef heron, Micronesian pigeon, great frigatebird, little pied cormorant, jungle night jar, cattle egret, great sulphur-crested cockatoo, blue-faced parrot, eclectus parrot, and Palau bush warbler.