| Opens | Closes | |||
|---|---|---|---|---|
| On site - GRNOG members | 29 Sept 2026, 14:14 | 30 Nov 2026, 23:59 | 37 / 160 | Register |
| On-site - Guests (non-members) | 29 Sept 2026, 14:15 | 30 Nov 2026, 23:59 | 3 / 55 | Apply |
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Serafio City of Athens
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