Considering your preferences for a warm climate, safety, active lifestyle, and thriving tech scene, here are some places worth exploring:

1. **Austin, Texas, USA:**
- Booming tech scene with a vibrant startup culture.
- Warm climate and a variety of outdoor activities.
- Known for live music and a lively cultural scene.

2. **Miami, Florida, USA:**
- Growing tech hub, especially in fintech and healthcare.
- Tropical climate and ample outdoor sports opportunities.
- Multicultural and vibrant atmosphere.

3. **Lisbon, Portugal:**
- Emerging as a European tech hub.
- Pleasant climate and beautiful scenery.
- Active lifestyle with outdoor activities.

4. **Barcelona, Spain:**
- Thriving startup ecosystem.
- Mediterranean climate and various outdoor sports options.
- Rich cultural scene and beautiful architecture.

5. **Brisbane, Australia:**
- Growing tech industry and innovation.
- Enjoy a subtropical climate and outdoor sports.
- Safe and diverse city.

6. **Denver, Colorado, USA:**
- Increasing tech presence, especially in the outdoor industry.
- Offers a mix of city life and proximity to nature.
- Known for its outdoor recreational opportunities.

7. **Tel Aviv, Israel:**
- Booming startup culture, particularly in tech.
- Mediterranean climate and beautiful beaches.
- Active lifestyle and a mix of cultures.

Before making a decision, consider factors like visa requirements, cost of living, and the current state of the tech industry in each location. Additionally, connect with expat communities or professionals in your industry for insights and advice.