BasecampCalendar 2025 Block 1 - Set up & BASI Level 1 Week 1 Week 2 Block 2 - Development, Practice, Ski School Experience Week 3 Week 4 Week 5 Block 3 - Half Term, Practice, Ski School Experience Week 6 Week 7 Block 4 - Final Preparation, BASI Level 2 Week 8 Week 9