June 13, 2026 — Insomniac's Into The Horizon is now inside the two-week window: Martin Garrix and Tiësto headline back-to-back nights at Waterfront Park in San Diego on June 27 and 28. Tickets are on sale now, and both artists already appear on The DJ Calendar with split day listings — the kind of routing that usually signals a final ticket-tier jump before the gates open.
The festival marks Tiësto's return to the Horizon series and Martin Garrix's debut on the bill. For Garrix, it lands at the end of a brutal June corridor: Brooklyn arena nights, Boston, Chicago's Northerly Island, then straight into a SoCal waterfront festival — exactly the sprint fans have been tracking on his Americas tour.
Key Takeaways
- Headliners: Martin Garrix and Tiësto — two DJ Mag Top 10 staples on one Insomniac-produced waterfront weekend (21+).
- Dates: Friday–Saturday, June 27–28, 2026 at Waterfront Park (1600 Pacific Hwy, San Diego).
- On sale: General admission and payment-plan options are live via the official Into The Horizon ticket portal — the site is counting down to gate opening.
- Calendar match: Garrix and Tiësto each have June 27 and June 28 show pages on The DJ Calendar with ticket links.
- Broader routing: Tiësto also announced a standalone open-air headline at Brussels' Atomium on July 31 — his first solo Brussels headline in more than a decade.
Table of Contents
- What Is Into The Horizon?
- Martin Garrix: Americas Tour Into San Diego
- Tiësto: Horizon Return and Brussels Atomium
- San Diego Waterfront Weekend Planning
- How to Track on The DJ Calendar
What Is Into The Horizon?
Into The Horizon is Insomniac's San Diego waterfront festival — open-air, Pacific-adjacent, and built around marquee headliners rather than a 100-act spreadsheet. The 2026 edition promotes Martin Garrix + Tiësto as co-headliners across the June 27–28 weekend at Waterfront Park, with the official site noting tickets are on sale and the countdown is under two weeks.
Unlike a single-night arena stop, Horizon behaves like a destination festival: hotel blocks, rideshare surge zones, and day-split lineups matter as much as the headliner announcement. If you are comparing Friday vs. Saturday, check both days on the artist profiles — Garrix and Tiësto each carry separate listings for June 27 and June 28 in our feed.
Martin Garrix: Americas Tour Into San Diego
Martin Garrix is in the middle of the largest Americas headline run of his career — 16 cities across North and South America, which he has described as the "full Garrix show experience" with new production and unreleased music. DJ Mag ranked him No. 2 in the 2025 Top 100 DJs poll; the tour is the live proof point behind that slot.
June is the U.S. density month: multi-night Brooklyn at Barclays Center, Agganis Arena in Boston, then Chicago at Huntington Bank Pavilion at Northerly Island (June 25–27) before the routing drops into San Diego for Horizon. That pattern — arena residency → festival → waterfront — is why secondary-market prices on the Northerly Island dates often predict San Diego demand.
On The DJ Calendar:
If you are flying in for one night only, watch both listings through the week — festival timetables can shift which day carries the longer headline slot.
Tiësto: Horizon Return and Brussels Atomium
Tiësto is billed as returning to Into The Horizon while Garrix makes his first appearance on the series. Tiësto's June 27–28 listings mirror Garrix on the San Diego grid:
Separate from Horizon, Tiësto announced a major open-air headline at the Atomium in Brussels on July 31, 2026 — presented by HANGAR and positioned as his first solo headline in Brussels in more than ten years. The Atomium has become a signature backdrop for large-scale electronic shows in Belgium (recent sets from artists like Lost Frequencies and Anyma); Tiësto joining that list keeps European routing hot through late July even after the U.S. festival wave peaks.
Track the Brussels city page if that date adds partner listings — standalone announcements often populate ticket links a few days after the press push.
San Diego Waterfront Weekend Planning
Waterfront Park sits on the edge of downtown San Diego with the bay as the backdrop — think sunset sets, marine layer evenings, and heavy rideshare demand at exit. Practical notes for Horizon weekend:
- Compare Friday vs. Saturday before buying — Insomniac festivals often split headliner depth by day even when both names are on the poster.
- Pair with the city hub: the San Diego page lists other June electronic dates if you are building a longer SoCal loop (common add-ons: LA club nights, Las Vegas residencies).
- Hotel timing: two-week-out is when boutique inventory tightens; festival-adjacent neighborhoods book before ticket resale spikes.
- 21+ entry — plan ID and entry policies accordingly; Horizon is not an all-ages park show.
Lost Frequencies also appears on Waterfront Park listings the same weekend in our feed — useful if you are drafting a multi-act schedule rather than a single-headliner trip.
How to Track on The DJ Calendar
- Articles — breaking festival and tour intel.
- Artist profiles — Martin Garrix and Tiësto for merged dates, ticket buttons, and email alerts.
- San Diego city hub — every upcoming show in the market.
- Waterfront Park venue page — room detail and stacked June listings.
- Cities directory — see how San Diego fits between Chicago, Vegas, and Ibiza routing.
Last updated: June 13, 2026. Show listings refresh on tour sync. Official festival site: intothehorizon.com.