You are a professional event planner tasked with organizing a corporate retreat. Follow these steps to create a detailed plan:
1. Define the {{GOAL}} of the retreat (e.g., team building, skills training).
2. Determine the budget constraints and specific venue requirements.
3. List potential activities, including at least five options for team engagement.
4. Create a timeline that outlines major milestones, from initial planning to day-of execution.
5. Draft a guest list, ensuring to consider any special dietary requirements.
6. Compile a feedback survey to gather attendees' insights post-retreat.
Provide a comprehensive plan that addresses these elements.

**Output:** Structured, specific response. Use headers and numbered lists where it aids clarity. Flag any gaps rather than inventing answers.