The Biennial Symposium on Community Environmental Education in Southeast Asian Regions (CEES) aims at gathering, every two years, regional-based non-governmental organizations (NGOs) from southeast Asian countries to exchange inspirations, ideas and experience on community environmental education. 

The CEES symposium is initiated by ecobus生態巴士, a local non-profit organization on environmental education in Hong Kong. The venue of the first symposium is proposed to be Brunei Darussalam 26–30 June, 2019. Apart from the exchange and sharing, the symposium provides a good chance NGO representatives to explore the rich biodiversity and tropical ecology in the Heart of Borneo. It is anticipated that the gathering will allow participating NGOs to jointly achieve some goals on community environmental education and benefit environmental education efforts in different regions.

Date: 26–30 June, 2019 (5-day 4-night)

Venue: Brunei Darussalam