"Symposium Overview:A growing body of research suggests that exposure to natural environments is good for people's mental and physical health (Maas et al., 2009; Mitchell and Popham, 2008, Berman, Jonides & Kaplan, 2008; Hartig, et al., 2003), especially when combined with physical activity (Bowler et al., 2010; Thompson Coon et al., 2011).To date however most of this research has considered the value of Green space (i.e. parks, woodlands, moors etc). This symposium extends this research by considering the mental and physical health benefits of exposure to, and exercise in and around, Blue Space environments (i.e. coast and inland waterways). Recent experimental evidence suggests that Blue Spaces are associated with more positive emotional responses than Green space and seen as more restorative (White et al., 2010; 2011). Thus the health and well-being benefits of Blue space may be particularly strong. The five presentations all examine this issue in different settings and explore policy implications in terms of supporting health and well-being. The first presentation considers the restorative potential of sub-aquatic environments focusing on the importance of biodiversity in a large tank at the UK's National Marine Aquarium. The second presentation examines the trade-off between the benefits for human well-being from coastal visits and pressures on marine habitats. The third talk presents data on child well-being associated with a 12 week surfing programme with children excluded from, or at risk of exclusion from, mainstream school. The third presentation outlines original analysis of two years of Natural England's, Monitoring Engagement with the Natural Environment Survey (2009-2011) with a focus on comparing the psychological benefits of leisure activities in Blue vs. Green spaces. The final presentation considers data from the 2001 Census of England examining the relationship between self-reported health and how close people live to the coast. Contributors (Presenter = first named): 1. Deborah Cracknell, Mathew White, Sabine Pahl & Michael Depledge: The Health and Well-being Benefits of a Visit to the National Marine Aquarium. 2. Kayleigh Wyles, Sabine Pahl & Richard Thompson: "I do like to be beside the seaside": A field study on the psychological benefits of going to the coast3. Amanda Hignett, Mathew White, Sabine Pahl & Mod Lefroy: Riding the Wave: Health and Well-being from a Surfing Programme for Children Excluded from Mainstream School.4. Katherine Ashbullby, Mathew White, Sabine Pahl & Michael Depledge: Well-being from Leisure Activities in Green and Blue Environments: Results from a National Survey.5. Benedict Wheeler, Mathew White & Michael Depledge: Costal Proximity and Human Well-Being: A Population Level Analysis. "