Name & Purpose Hot Chocolate River is a communication and team problem-solving game. The whole group must cross a 20-foot “river” using a limited set of “marshmallows” (carpet squares). If any marshmallow is left unanchored, the current sweeps it away. The challenge forces constant communication, shared responsibility, and awareness of every teammate.
a.k.a. Marshmallow Crossing; Lava River; The Crossing
Age Band / Group Size / Time / Space Ages 8β16. Groups of 10β20. Allow 45β60 minutes. Needs a flat open space at least 25 feet long and 15 feet wide β works indoors (gym) or outdoors (grass, pavement).
Materials
- 2 ropes, or cones/tape, to mark river edges β set 20 feet apart
- 8β9 carpet squares, poly spots, or flat tarp pieces per group (the “marshmallows”)
Quick-Run Card
- Lay both ropes parallel, 20 feet apart. Group starts on one bank.
- Hand the group 8β9 marshmallows.
- Explain the rules (below).
- Say “Go.” Facilitate from the side β watch for unanchored marshmallows.
- If a marshmallow loses contact: remove it from play immediately.
- The game ends when every group member reaches the far bank.
- Debrief.
Setup & Boundaries
- Lay ropes or tape parallel on the ground, 20 feet apart. This is the river. Both banks extend beyond the ropes β the river does NOT end where the ropes end. State this clearly.
- The group starts behind one rope. The goal is to reach the other side.
- Marshmallow rules:
- Every marshmallow placed in the river must have at least one body part on it at all times.
- A safe appendage: hand, foot, knee, elbow. The participant must be touching it β just leaning weight counts.
- Once a marshmallow is placed in the river, it cannot be picked up and moved β it is too heavy. (Exception: a marshmallow that was swept away is gone for the rest of the game.)
- If no one is touching a marshmallow: facilitator removes it from play. No argument β it is gone.
- The group cannot walk around the river. The river extends infinitely in both directions.
How to Play Tell the story: “You are looking at a giant hot chocolate river. It is too hot to swim and too deep to walk. The only way across is by stepping on the giant marshmallows floating in it. But the current is so strong that any marshmallow not held down gets swept away immediately. Once a marshmallow is in the river, it swells up and becomes too heavy to move. You must use these marshmallows to get every single member of your team to the other side.”
Give the group 8β9 marshmallows. The total marshmallows are slightly more than needed β the group must figure out the stepping pattern and anchor strategy.
The facilitator watches all marshmallows during transit. Call out and remove any unanchored marshmallow immediately and without hesitation. Do not warn in advance.
If needed, run a second facilitator β one per bank β to catch missed anchoring violations.
The game succeeds when every group member stands on the far bank. Celebrate clearly.
I-OPt Roles Run at least three simultaneously:
- Bridge Planner (Analyst) β thinks several steps ahead. Plans which marshmallow goes where and in what order. Speaks out crossing sequences.
- Anchor Guard (Implementer) β actively maintains contact with a marshmallow while others cross. Physical role. Often the person who stays near the back of the group.
- Spotter (Performer) β watches the whole group. Calls out when a marshmallow is losing contact. Warns teammates before the facilitator removes it.
- Closer (optional) β the last person across takes on the hardest logistical role: moving marshmallows forward without leaving others unanchored. Invite volunteers; do not assign.
No role is eliminated. Anyone can take any role at any time during the crossing.
Inclusion Supports
- Participants who cannot step on carpet squares (mobility aids, balance issues): they can be the Anchor Guard (maintaining hand contact from the bank) or the Bridge Planner (directing from shore). They count as having crossed when the team collectively succeeds.
- Participants who are not comfortable with close proximity mid-crossing: let them go first or last, where the group is less clustered.
- Participants who want to opt out of the physical crossing: they serve as the official communication tracker β they watch and tally every moment the group communicates effectively. Report in debrief.
- The game succeeds as a team. No individual is the hero. Name this clearly in the pre-brief.
Stewardship Action: After the game, stack marshmallows neatly and coil or fold ropes for storage. Check carpet squares for damage.
30-second reflection: “Every marshmallow that got swept away was a resource your team lost. Think about a resource your group or cabin tends to waste. What is one thing you can do this week to protect it?” Pause 30 seconds.
Consent Pre-brief: “This game involves close physical teamwork β you may need to hold a teammate’s shoulder or stand very close together. If you have any concerns about contact, tell me now and we will set up your role before we start.”
Mid-game check-in: If the group becomes clustered and tense, pause the game for 10 seconds: “Quick check β everyone still good? Thumbs up.” Resume immediately.
Opt-out/re-entry: Any participant can step to the bank as a communication observer at any time. They re-enter the crossing team when ready. The group does not reset for this.
Risks & Mitigation
| Risk | Likelihood | Mitigation |
|---|---|---|
| Participant trips on carpet square | Medium | Use flat, non-folding carpet squares; check surface before starting |
| Participant slips when group is crowded on one marshmallow | Medium | Brief the group: no more than 4 people per square; slow movement |
| Group frustration when marshmallow is removed | High | Brief this upfront: “Removal is part of the game β no arguing.” Stay consistent and calm when removing. |
| Participant distress from group pressure to succeed | Medium | Remind the group in pre-brief that success is collective β no individual blame |
| Ankle roll on uneven ground | Low | Check the ground surface before setup; avoid gravel or sloped areas |
Warm-Up Suggestions
- Stepping Stones (3 min): Lay 5 carpet squares in a line. The group crosses using only the squares β one person at a time. No rules about anchoring. Gets the group used to the squares and the concept of limited stepping space.
- Team Breath (1 min): Group stands in a circle, holds hands. All breathe in together, out together three times. Sets a collaborative tone before the challenge starts.
Debrief What?
- When did the group lose a marshmallow? What was happening at that moment?
- Who tracked the marshmallows? Who tracked the people?
So what?
- This game is about communication, not physical skill. Where did communication work? Where did it fail?
- Did it matter that the whole group made it β not just some of you? How did that change how you moved?
Now what?
- Name one communication habit from this game that you want to use in your cabin or team.
- What does it feel like to be responsible for everyone, not just yourself?
Cleanup & Reset
- Stack carpet squares.
- Coil and store ropes.
- Check squares for damage or moisture.
- Reset time: 3 minutes.
