Grow a Garden High Tide Harvest Part 4 Guide: Pirate Quests, Scuba Dima, Red Beach Shovel & the 5-Day Countdown to August 1 (July 26, 2026)

Last Verified: July 26, 2026. Every mechanic, cost, drop rate, and reward below is pulled directly from the official Grow a Garden Fandom wiki's High Tide Harvest Event page and its Part 4 tables (hightide-piratequests-p4, hightide-shelldonupgrade-p4, hightide-summercollection-p4). Nothing here is a leak. If it is not wiki-confirmed, it is not in this guide.

After thousands of hours in the original Grow a Garden, I can tell you this: the finale week of an event is the only week that actually matters. Part 4 of the High Tide Harvest Event dropped the four systems veterans have been waiting for — Pirate Quests, the Scuba Dima Shelldon upgrade, the full Summer Collection tracker, and the Red Beach Shovel unlock — and every one of them is on a hard timer.

The event ends August 1, 2026. That means you have 5 days from today (July 26) to squeeze every Tide Token, Coastal Egg, and cosmetic before the Sandcastle disappears. This is the finale checklist, ranked by what actually moves the needle.

TL;DR — What Part 4 Actually Added

• Pirate Quests — a new quest board hosted by Pegleg Pete. Three quests active at all times (Easy / Medium / Hard). Fixed payouts of 5, 15, and 30 Tide Tokens.
• Scuba Dima (Shelldon Upgrade) — a 3-tier upgrade path that shaves Shelldon's pet-to-pearl cooldown from 60 minutes down to 30 minutes. Requires 40, 80, then 120 kg of tidal-mutated fruits.
• Summer Collection — a 3-category tracker across 18 event Seeds, 13 event Pets, and 14 event Cosmetics. Hit 80% completion to unlock the exclusive Red Beach Shovel skin.
• Chest Conquest Divine Chest — 1% spawn odds, but the payout is the Part 4 endgame: 6x Coastal Seed Pack, 10x Coastal Egg, and a Gilded Grove Seed.
• Tide Token Shop expansion — new top-tier stock including the Tidal Fountain (Prismatic), Okra Seed and Coastal Container (Divine), Dolphin and Tidal Orchid Seed (Mythical).
• Event ends August 1, 2026. If it says "Tide Token" or "Coastal," it is gone or vaulted on August 2.

The August 1 Deadline — Grind Priority Order

Five days is not much. If I had to sit down right now and grind this event from scratch, this is the order I would attack it in, ranked by irreplaceability of the reward:

1. Team Event 6/7 daily goals — the Lagoon Lily Seed is a limited grand-prize seed gated behind the event. Miss it and you wait for the next Coastal-adjacent event to potentially bring it back.
2. Summer Collection 80% — the Red Beach Shovel is a limited-time shovel skin. Cosmetic completionists cannot get it back once the event vaults.
3. Pirate Quests — the cleanest per-minute Tide Token income in the event. Reroll them if you get a bad set, then complete every day.
4. Chest Conquest — free every hour, and the Divine Chest is the only known reliable source of the Gilded Grove Seed.
5. Shelldon + Scuba Dima upgrades — each 10-min cooldown reduction is worth more Coastal Eggs over the remaining 5 days than most people realize.
6. Tide Token Shop pulls — spend leftover Tokens at the end, on the highest-tier items you can afford.

Pirate Quests — Pegleg Pete's Full Reward Math

Location: Pegleg Pete's platform, added in Part 4.  |  Slot count: 3 (one Easy, one Medium, one Hard)  |  Reroll: Robux to skip all 3 and get a new set.

Per the wiki, Pirate Quest payouts are fixed by difficulty, not by task type:

Full clear = 50 Tide Tokens per rotation. The quest list rotates through 17 possible objectives, ranging from simple grind ("Submit 50/150/300 plants to the High Tide") to griefer-friendly ("Hit players with your shovel 2/4/6 times") to spend-based ("Spend 20/50/100 Tide Tokens").

Here is every quest the wiki has cataloged, with the Easy / Medium / Hard targets:

Meta pick: "Submit plants to the High Tide" is trivial if you are already farming the loop — those quests will complete themselves. Rerolling to try to land the Watermelon / Cauliflower / Rafflesia submission quests is worth it if you have those crops already growing, because the target counts are low (5-15 for Hard).

Scuba Dima — Every Shelldon Upgrade Tier

Scuba Dima is the Part 4 NPC that unlocks Shelldon's upgrade path. Shelldon (unchanged from earlier parts) takes a pet, waits an hour, then hands back Coastal Egg pearls. Each Scuba Dima upgrade shaves that cooldown.

Reality check for finale week: full 3-upgrade path costs 240 kg of tidal-mutated fruit. That is a lot of tidal spawns in 5 days. If you are time-crunched, hitting Upgrade 1 (40 kg -> 50-min cooldown) and Upgrade 2 (another 80 kg -> 40-min cooldown) is the realistic sweet spot for most veteran farms. Going for Upgrade 3 only makes sense if you already have a stockpile of Tidal-mutated crops sitting in inventory.

Summer Collection — The 80% Red Beach Shovel Unlock

The Summer Collection is the Part 4 completion tracker. It splits event items into three categories — and the only "reward" it drops is the Red Beach Shovel skin, an event-exclusive shovel unlocked at 80% collection completion.

Category totals (per the wiki's hightide-summercollection-p4 table):

• Seeds (18 total): Sunshade Flower, Beach Ball Cactus, Sand Pail Shrub, Pool Noodle, Sun Fruit, Shark Splash, Drippy Delight, Okra, Beach Brella, Tidal Orchid, Popsicle Melt, Beach Ball Palm, Sun Bloom, Castle Crocus, Seaspray Grass, Gilded Grove, Tiki Totem, Lagoon Lily.
• Pets (13 total): Sea Urchin, Sandcastle Crab, Dolphin, Walrus, Jellyfish, Sea Anemone, Seahorse, Hermit Crab, Orca, Pelican, Manta Ray, Hippocampus, Nautilus.
• Cosmetics (14 total): Tiki Torch, Summer Drinks, Beach Tube, Beach Chair Statue, Flamingo Tube, Tidal Wave, Beach Mat, Red Sand Pail, Beach Lounge Chair, Beach Parasol, Ice Cream Stand, Sandcastle, Life Guard Chair, Tidal Fountain.

Total tracked items: 45. The 80% threshold works out to 36 items. That is very achievable if you have been playing through Parts 1-3, less achievable if you are starting now. Focus on the Seed category first — seed drops from the Tide Token Shop and Chest Conquest carry the fastest per-token completion rate.

Chest Conquest — The 1% Divine Chest & the Gilded Grove Seed

Chest Conquest is a Part 3 addition that keeps mattering in the finale. Every hour, 6 chests spawn around the map. You have 3 minutes to grab them, one at a time, and rival players can knock a chest out of your hands by swinging their shovel.

The Divine Chest is 1%, but the walk-speed penalty is brutal (-8) and every other player in the server knows what is inside. Two rules save you: (1) if a Divine Chest spawns, drop whatever chest you were carrying and go for it, and (2) server-hop between cycles — a fresh server has fresh Chest Conquest cooldown and no one who has tracked its location.

Tide Token Shop — What to Actually Spend On

The Tide Token Shop restocks every 15 minutes. As of Part 4, these are the highest-value entries (per the wiki):

Priority order: if you care about Summer Collection completion, chase the seeds first — Okra, Tidal Orchid, and Drippy Delight each tick one Seed slot. If you already have collection completion, spend on Dolphin and Walrus (the Pet slots) or the Tidal Fountain if you want the Prismatic-tier cosmetic centerpiece.

Trap to avoid: the Beach Brella Seed and the Coastal Seed Pack are both 100% stock chance at 4 Tide Tokens. They are cheap, but they exist to drain your Token pool. Skip them unless you specifically need Beach Brella for the Summer Collection.

Team Event — Hitting 6/7 Days for the Lagoon Lily

Team Event is unchanged from launch: 4-player group, 7 days, daily goal of 150,000 Harvest Points combined. You need 6 out of 7 daily goals for the grand prize.

Daily rewards (per completion):

Grand prize (6/7 daily goals cleared): 1x Lagoon Lily Seed. This is the reason you build a team — the Lagoon Lily is on the Summer Collection Seed list, so it double-counts as an 80% collection tick.

How to actually hit 150,000 points/day with 5 days left: the number sounds intimidating until you realize it splits four ways (37,500 each). Every High Tide submission of a Legendary or Mythical crop with a Tidal mutation delivers a chunk. Coordinate submissions during the same High Tide window — the loop lasts 10 minutes, and stacking 4 farms into it easily clears the daily.

Mega Harvest — The 3% Doubler Everyone Forgets

Mega Harvest is a 3% chance per hour, replacing the normal High Tide with a doubled-points variant. That means, over 5 days (roughly 120 hourly loops), you should statistically see 3-4 Mega Harvests. Save your highest-value Tidal-mutated crops for these windows — doubling a Rafflesia or Cantaloupe submission is where finale-week Tide Token counts actually come from.

FAQ

When does the High Tide Harvest event end?

August 1, 2026, per the event's wiki infobox. After that date, the Tide Token, Coastal Egg, and all event-exclusive items should be vaulted or removed from active shops.

What does 80% Summer Collection completion actually unlock?

The Red Beach Shovel skin — an event-exclusive shovel cosmetic. 80% of the 45 tracked items works out to 36 items collected.

How much tidal-mutated fruit do all 3 Scuba Dima upgrades cost?

240 kg total (40 + 80 + 120). The final cooldown for Shelldon after all three upgrades is 30 minutes, down from 60.

What is the Divine Chest drop rate in Chest Conquest?

1% per hourly Chest Conquest cycle, per the wiki. Guaranteed contents include 6x Coastal Seed Pack, 10x Coastal Egg, and 1x Gilded Grove Seed.

Can I still get the Lagoon Lily Seed with 5 days left?

Yes, but only if you complete at least 6 of the remaining daily 150,000-point goals with your Team Event group. If you started Team Event late, you may be locked out; the wiki's daily-goal structure resets one 24-hour window at a time.

Is the Red Beach Shovel tradeable?

The wiki does not currently list it as tradeable. Shovel skins in Grow a Garden typically bind to the account that unlocked them.

Related Guides

• Grow a Garden High Tide Harvest Event Guide (Parts 1-2) — the launch guide covering the Tidal mutation, Team Event basics, and every original event seed.
• Grow a Garden Summer Event Part 2 Preview — what shipped in the July 11 mid-event drop.
• All Grow a Garden Mutations — the full mutation multiplier chart including Tidal.
• All Grow a Garden Events — the full event archive and history.
• All Grow a Garden Sprinklers — where the Summer Splash Sprinkler sits in the tier list.

Sources

• Grow a Garden Wiki — "High Tide Harvest Event": primary source for all Part 4 mechanics (Pirate Quests structure and full quest table, Scuba Dima upgrade tiers and kg costs, Summer Collection category lists and 80% Red Beach Shovel threshold, Chest Conquest odds and drop tables, Tide Token Shop stock and prices, Team Event daily-reward table and grand prize, Mega Harvest 3% chance, event start and end dates).
• Grow a Garden Wiki — "Update Log": version history and update-part timing.