This wonderful yoga and meditation centre is found down a well-signposted track leading inland from Gili Air's eastern shore. Top-quality classes (at 7am, 9am, or 5pm for 'candlelight yoga') are held in one of two lovely thatched shalas. H2O also offers a day spa, a pool (with aqua yoga classes), accommodation (doubles from 270,000Rp) and seven-day retreats (from US$625).
H2O's Good Earth Cafe sells restorative and healthy post-yoga treats from 7am to 4.30pm.