Things to Do in the Seaport the Weekend of Sep 11–13, 2026

Sep 11–13 · 6 picks hand‑checked by Stumblday against organizer pages · 1 free in the top 6 · updated Oct 5

The 6 best things to do in the Seaport the weekend of Sep 11–13

  1. Afrofuture at The Rooftop at Pier 17 — SUNDAY, SEPTEMBER 13 · Seaport
  2. Galantis Presents Midsommar — Friday & Saturday, Sep 11-12 · Seaport
  3. Seaport Racquet Club — Final weekend - through Sunday, Sep 13 · Free · Seaport
  4. The Promise of Liberty at the Seaport Museum — WEDNESDAYS - SUNDAYS · Seaport
  5. Galantis on The Rooftop at Pier 17 — Friday SEPTEMBER 11 & SEPTEMBER 12 · Seaport
  6. Watermark Beach — MAY - SEPTEMBER · Seaport
#6
Watermark BeachThe Seaport, Seaport, Manhattan
MAY - SEPTEMBER

Watermark Beach

Seaport, Manhattan

A 10,000-square-foot beach club on Pier 15 with palm trees, giant Jenga and reggaeton nights — free to walk in, East River at your feet.

The SeaportEat & DrinkFamily Friendly
#6MAY - SEPTEMBER · Limited Run
Watermark BeachThe Seaport, Seaport, Manhattan
The SeaportEat & Drink

Watermark Beach

A 10,000-square-foot beach club on Pier 15 with palm trees, giant Jenga and reggaeton nights — free to walk in, East River at your feet.

About this list

Stumblday's hand-checked ranking of the best things to do in the Seaport, Manhattan the weekend of Sep 11–13, 2026: 6 picks, refreshed weekly.

Worth planning ahead

Big weekends coming up — save them now, plan later.

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