[Home](./index.md) > [bitburner](./bitburner.md) > [Sleeve](./bitburner.sleeve.md) > [travel](./bitburner.sleeve.travel.md) ## Sleeve.travel() method If you are not in BitNode-10, then you must have Source-File 10 in order to use this function. Return a boolean indicating whether or not the sleeve reached destination. Signature: ```typescript travel(sleeveNumber: number, cityName: City): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | sleeveNumber | number | Index of the sleeve to travel. | | cityName | [City](./bitburner.city.md) | Name of the destination city. | Returns: boolean True if the sleeve reached destination, false otherwise. ## Remarks RAM cost: 4 GB