Switzerland - Hard

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Across
  1. 2. Martin's useless skill
  2. 6. Olivia's childhood dog
  3. 8. Olivia's strongest tennis shot
  4. 9. Olivia's budding hobby
  5. 11. Olivia's mountain bike brand
  6. 12. Sound Martin listens to at work (5, 6)
Down
  1. 1. Olivia's allergy
  2. 2. Highest rail station in Europe we visited
  3. 3. Mountain town we stayed in. Also a Harry Potter character
  4. 4. Olivia's tennis racquet brand
  5. 5. Minutes it took Martin to run 5km
  6. 7. The drink Martin is learning to love
  7. 10. Overpriced but delicious shop at the top of the mountain