I just give you a list of suggested names, though I can't put it where.
Mountain
1. Mt. Silungan - citizens evacuate to mountains when typhoon strikes
2. Mt. White Cap
Forests and Grassfields
1. Cauayan - a bamboo forest
2. Cogon - a grassfied with lots of cogon grass - http://www.nps.gov/plants/alien/fact/imcy1.htm
3. Calasangan - simply a forest
Cities
1. Edelven - Flower city
2. Barcojan (bar-ko-han) - A seaport city
3. North Lake
4. Luparan (accent on the second syllable) - aviation city
5. Dungguan - another seaport city
Islands
1. Cowrie Island
2. Tirador Island - an island once served as a military training camp for snipers
Water Forms
1. Orca Bay
2. Whale Shark Gulf
Other Landmarks
1. Triton Floating Island
