Twice yearly in the spring and fall, Green Lake Church broadens its outlook by inviting guest speakers on topics of current interest. Each series comprises four sessions, a soup supper (potluck), and a vegetarian potluck lunch.

Typical Schedule:
- Saturday Morning
- 9:30 – Interview
- 10:00 – Discussion Class with Guest Speaker
- 11:00 – Church Service with Guest Speaker
- Saturday Afternoon
- 12:00 – Potluck
- 3:00 – Lecture