Aksigin

Vertical Cave
Izmit - Kocaeli - Marmara

Astakos

City
Basiskele - Kocaeli - Marmara

Ayazma

Cave
Karamürsel - Kocaeli - Marmara

Aytepe

Horizontal Cave
Bahçecik - Kocaeli - Marmara

Cinlikuyu

Cave
Izmit - Kocaeli - Marmara

Dakibyza

Unknown
Gebze - Kocaeli - Marmara

Deliklibent

Cave
Ulukisla - Kocaeli - Marmara

Gökçeören

Horizontal Cave
Izmit - Kocaeli - Marmara

Hereke

Cave
Hereke - Kocaeli - Marmara

Kalpe

City
Kandira - Kocaeli - Marmara

Kanzares

Village
Kandira - Kocaeli - Marmara

Kayaüstü Yaylasi Düdeni

Cave
Izmit - Kocaeli - Marmara

Kefken

Cave
Kandira - Kocaeli - Marmara

Kefken - Cebeci Yöresi

Habitation Site / Workshop
Kandira - Kocaeli - Marmara

Kerpe

Cave
Kandira - Kocaeli - Marmara

Köprü

Vertical Cave
Bahçecik - Kocaeli - Marmara

Libyssa

City
Dilovasi - Kocaeli - Marmara

Magara Pinari

Cave
Kandira - Kocaeli - Marmara

Maneta

Village
Kandira - Kocaeli - Marmara

Örgünköyü

Cave
Gölcük - Kocaeli - Marmara