South Island Itinerary - 2 weeks Mid March - Advice/Suggestions Request

I put together a tentative two week itinerary, and would really appreciate any advice or suggestions. It will just be my partner and myself. We both enjoy outdoor activities and nature.

Day 1 - Arrive in Queenstown in AM. R&R + Queenstown Gondola + Luge + Dinner? Would it be worth eating dinner and catch the sunset up there?

Day 2 - Road Trip to Glenorchy. Jet Boat Tour into Mt Aspiring National Park.

Day 3 - Hike the Rob Roy Track

Day 4 - Skydive in the AM. Visit wineries in the afternoon in Central Otago (any recommendations?)

Day 5 - Leave Queenstown for Te Anau. Explore Te Anau and visit the glowworm cave

Day 6 - Kayak Milford Sound

Day 7+8 - Doubtful Sound overnight cruise

Is it worth it to do both, or should we just do the overnight cruise and skip the kayak?

Day 9 - Drive to Dunedin. Penguin Place and Royal Albatross center.

Day 10 - Leave Dunedin to Tekapo. Take the Dark Sky Project Summit Experience

Day 11 - Leave Tekapo for Christchurch. Explore Christchurch

Day 12 - Whale Watch Kaikoura

Day 13 - Hamner Springs Thermal Pools & Spa

Day 14 - Fly from Christchurch to Auckland. Explore Auckland

Day 15 - Fly home.