What it is.
The three-species combination here is bonefish, permit, and Atlantic tarpon in Bahía de la Ascensión. The name can also appear in lodge branding. State the species and the intended flats trip so a brand name does not substitute for an itinerary.
Know the species.
| Local name | Standard name |
|---|---|
| bonefish | Bonefish |
| permit | Permit |
| tarpon | Atlantic tarpon |
Where to go.
Bahía de la Ascensión, Quintana Roo. These destination profiles match the named water or departure base. Each retains its own research status.
The season, with context.
March to June is the cited local guide's peak window.
- Name the target species. Slam definitions can differ by source and region.
A seasonal pattern, a provider schedule, and a legal opening are different facts. Confirm the current rule for the exact water and trip category.
Official rules and permissions
How it is fished.
Fly or light-tackle sight fishing.
The documented format uses fly or light-tackle sight fishing from a flats skiff, often within a lodge stay. Ask how the guide prioritizes permit against the other targets and whether any wading is planned. March–June is a cited local guide’s peak assessment, not an assurance that all three species will cooperate.
Planning format: Full day or multi-day; flats skiff and lodge. Confirm the actual duration with the provider.
What to bring.
- Polarized glasses and sun coverage for long periods of sight fishing.
- Footwear matched to skiff use or confirmed wading.
- A compact fly or lure selection based on the lodge’s current requirements.
What a guide provides.
No provider inclusions are confirmed here. Use this trip-specific list to ask what the actual guide supplies. Mark an item “Guide provides” only after confirmation.
- Confirm the skiff, guide, tackle options, and number of anglers.
- Ask whether transfers, meals, and accommodation form part of the named package.
- Agree on species priorities and the plan for wind or poor visibility.
Words from this water.
- Ascension Bay slam ↗
- The bonefish, permit, and tarpon objective used here.
- palometa ↗
- A Spanish name used for permit in the local source context.
Before you go.
Does a “Grand Slam” lodge name define my catch objective?
No. Confirm the actual species and itinerary. This page uses bonefish, permit, and tarpon, but a business name alone does not establish what a trip includes.
What seasonal window does the evidence support?
March to June is the cited local guide's peak window. A seasonal account does not confirm current availability. Use the linked authority for current rules.
What must I confirm before I book this trip?
Confirm the skiff, guide, tackle options, and number of anglers. Ask whether transfers, meals, and accommodation form part of the named package. Agree on species priorities and the plan for wind or poor visibility. Castward has no confirmed guide inventory for this trip type.
Make the local plan.
No guide listings or live availability are confirmed for this trip type. Castward does not take a booking here.
Use the preset to prepare your questions. Confirm the provider, date, route, equipment, and price directly before you book.
Prepare a guide inquiry ↗Sources and scope.
Research checked 10 November 2026. Preparation advice is editorial. Castward has not field-tested these trips or verified current provider availability.
- Mayan Permit in Yucatan's Ascension Bay - Fly Fisherman ↗
fishing or travel publication. search-result excerpt reviewed; page text retrieved for claim checks.
- Chasing Palometa: Celebrating Mexico's Remarkable Sian Ka'an - Fly Fisherman ↗
fishing or travel publication. search-result excerpt reviewed; page text retrieved for claim checks.
- A Flats Fishing Calendar ↗
fishing or travel publication. search-result excerpt reviewed; direct page content limited.