Can I build a portal on a boat or in the ocean?

In Valheim, portals are essential for fast travel across the vast world, but building them on a boat or in the ocean is not possible due to game mechanics. Portals require a stable, solid surface to be constructed, and boats or open water do not meet these requirements. This limitation is tied to the game''s physics and building system, which prioritizes grounded structures for stability and functionality.\n\nTo build a portal, you need to place it on a flat, solid surface such as the ground, a stone floor, or wooden flooring. The portal itself requires specific materials: 20 Fine Wood, 2 Surtling Cores, and 10 Greydwarf Eyes. Fine Wood is obtained by chopping down birch or oak trees, Surtling Cores are found in Burial Chambers or dropped by Surtlings in the Ashlands biome, and Greydwarf Eyes are dropped by Greydwarfs in the Black Forest biome. These materials are relatively easy to gather early in the game, making portals a key tool for exploration.\n\nWhile you cannot build a portal on a boat, you can strategically place portals near coastal areas to facilitate travel between land and sea. For example, if you are exploring a new island, you can dock your boat, build a small outpost, and set up a portal to connect back to your main base. This approach ensures you can quickly return to your base for repairs, restocking, or crafting without losing progress in your exploration.\n\nOne common challenge players face is managing portal connections when exploring multiple islands. To address this, consider naming your portals descriptively, such as ''Island1'' or ''SwampBase,'' to avoid confusion. Additionally, always carry portal materials with you when venturing into new areas. This way, you can set up a temporary portal to return home if needed, then dismantle it later to reuse the materials.\n\nFor players who enjoy sailing, it is important to plan your routes carefully. Since portals cannot be built on boats, you will need to rely on your ship''s durability and your own navigation skills to traverse the ocean. Always carry extra materials for boat repairs, such as resin and wood, and keep an eye out for storms or sea serpents that can damage your vessel. Building small coastal outposts with portals can serve as safe havens during long voyages.\n\nIn summary, while you cannot build a portal on a boat or in the ocean, you can use portals effectively by placing them near coastal areas and planning your exploration routes. This strategy allows you to balance the convenience of fast travel with the thrill of sailing and discovery. By understanding the game''s mechanics and preparing adequately, you can make the most of Valheim''s vast world and its many challenges.